diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 000000000..8bc16b011
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,2 @@
+**/node_modules/*
+
diff --git a/.eslintrc.yml b/.eslintrc.yml
new file mode 100644
index 000000000..599d506ab
--- /dev/null
+++ b/.eslintrc.yml
@@ -0,0 +1,19 @@
+---
+extends:
+  - 'eslint:recommended'
+  - 'plugin:node/recommended'
+  - prettier
+env: 
+  mocha: true 
+plugins:
+  - node
+  - prettier
+rules:
+  prettier/prettier: error
+  block-scoped-var: error
+  eqeqeq: error
+  no-warning-comments: warn
+  no-console: off
+  node/no-missing-require: off
+  node/no-unpublished-require: off
+
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 000000000..f6fac98b0
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,3 @@
+node_modules/*
+samples/node_modules/*
+src/**/doc/*
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 000000000..df6eac074
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,8 @@
+---
+bracketSpacing: false
+printWidth: 80
+semi: true
+singleQuote: true
+tabWidth: 2
+trailingComma: es5
+useTabs: false
diff --git a/1-hello-world/package.json b/1-hello-world/package.json
index a390716f2..0f3ddaf88 100644
--- a/1-hello-world/package.json
+++ b/1-hello-world/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node app.js",
     "e2e": "repo-tools test deploy",
diff --git a/2-structured-data/app.js b/2-structured-data/app.js
index 976d3db4d..74b2ddaaf 100644
--- a/2-structured-data/app.js
+++ b/2-structured-data/app.js
@@ -39,7 +39,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   console.error(err);
   // If our routes specified a specific response, then send that. Otherwise,
diff --git a/2-structured-data/books/api.js b/2-structured-data/books/api.js
index 98b65fc58..c81c35520 100644
--- a/2-structured-data/books/api.js
+++ b/2-structured-data/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/2-structured-data/books/crud.js b/2-structured-data/books/crud.js
index 858e3f821..5b8d89281 100644
--- a/2-structured-data/books/crud.js
+++ b/2-structured-data/books/crud.js
@@ -16,14 +16,14 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
 const router = express.Router();
 
 // Automatically parse request body as form data
-router.use(bodyParser.urlencoded({ extended: false }));
+router.use(bodyParser.urlencoded({extended: false}));
 
 // Set Content-Type for all responses for these routes
 router.use((req, res, next) => {
@@ -44,7 +44,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -58,7 +58,7 @@ router.get('/', (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 // [END add_get]
@@ -96,7 +96,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -130,7 +130,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -141,7 +141,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/2-structured-data/books/model-cloudsql.js b/2-structured-data/books/model-cloudsql.js
index 2f5c7a29e..be41ff3fe 100644
--- a/2-structured-data/books/model-cloudsql.js
+++ b/2-structured-data/books/model-cloudsql.js
@@ -20,20 +20,24 @@ const config = require('../config');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
 // [START list]
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -47,7 +51,7 @@ function list (limit, token, cb) {
 // [END list]
 
 // [START create]
-function create (data, cb) {
+function create(data, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -58,13 +62,15 @@ function create (data, cb) {
 }
 // [END create]
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -72,23 +78,23 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
 // [START update]
-function update (id, data, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      read(id, cb);
-    });
+function update(id, data, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    read(id, cb);
+  });
 }
 // [END update]
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -98,7 +104,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -107,7 +113,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql database.
-    This script will not modify any existing tables.`);
+    This script will not modify any existing tables.`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -117,10 +124,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -137,7 +149,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/2-structured-data/books/model-datastore.js b/2-structured-data/books/model-datastore.js
index 8e8375448..90cf341ff 100644
--- a/2-structured-data/books/model-datastore.js
+++ b/2-structured-data/books/model-datastore.js
@@ -18,7 +18,7 @@ const config = require('../config');
 
 // [START config]
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 // [END config]
@@ -39,7 +39,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -67,17 +67,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   const results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -88,8 +88,9 @@ function toDatastore (obj, nonIndexed) {
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
 // [START list]
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -99,7 +100,10 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -109,7 +113,7 @@ function list (limit, token, cb) {
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
 // [START update]
-function update (id, data, cb) {
+function update(id, data, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -119,30 +123,27 @@ function update (id, data, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      data.id = entity.key.id;
-      cb(err, err ? null : data);
-    }
-  );
+  ds.save(entity, err => {
+    data.id = entity.key.id;
+    cb(err, err ? null : data);
+  });
 }
 // [END update]
 
-function create (data, cb) {
+function create(data, cb) {
   update(null, data, cb);
 }
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -153,7 +154,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -164,6 +165,6 @@ module.exports = {
   read,
   update,
   delete: _delete,
-  list
+  list,
 };
 // [END exports]
diff --git a/2-structured-data/config.js b/2-structured-data/config.js
index 0df822802..03c4b72f9 100644
--- a/2-structured-data/config.js
+++ b/2-structured-data/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -29,10 +29,10 @@ nconf
     'MYSQL_USER',
     'MYSQL_PASSWORD',
     'NODE_ENV',
-    'PORT'
+    'PORT',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // dataBackend can be 'datastore' or 'cloudsql'. Be sure to
@@ -47,7 +47,7 @@ nconf
     MYSQL_USER: '',
     MYSQL_PASSWORD: '',
 
-    PORT: 8080
+    PORT: 8080,
   });
 
 // Check for required settings
@@ -61,8 +61,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   }
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/2-structured-data/package.json b/2-structured-data/package.json
index 44b1b2676..049791238 100644
--- a/2-structured-data/package.json
+++ b/2-structured-data/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node app.js",
     "test": "repo-tools test app && ava -t 30s --tap test/*.test.js",
diff --git a/2-structured-data/test/_api-tests.js b/2-structured-data/test/_api-tests.js
index 233c0ffc9..428d6478b 100644
--- a/2-structured-data/test/_api-tests.js
+++ b/2-structured-data/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/2-structured-data/test/_crud-tests.js b/2-structured-data/test/_crud-tests.js
index f67b0a07a..20e64456c 100644
--- a/2-structured-data/test/_crud-tests.js
+++ b/2-structured-data/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .send(`title=my%20book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         if (DATA_BACKEND !== `mongodb`) {
@@ -93,19 +93,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -117,12 +117,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -130,47 +130,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .send(`title=my%20other%20book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
-    const expected =
-      /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
+  test.serial.cb(`should show edit book form`, t => {
+    const expected = /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -178,7 +177,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/2-structured-data/test/_test-config.js b/2-structured-data/test/_test-config.js
index 8e5284860..228118e00 100644
--- a/2-structured-data/test/_test-config.js
+++ b/2-structured-data/test/_test-config.js
@@ -24,10 +24,10 @@ module.exports = {
   cmd: `app`,
   port: PORT,
   env: {
-    PORT: PORT
+    PORT: PORT,
   },
   url: `http://localhost:${PORT}`,
   version: process.env.GAE_VERSION || TESTNAME,
   project: process.env.GCLOUD_PROJECT,
-  msg: `Bookshelf`
+  msg: `Bookshelf`,
 };
diff --git a/2-structured-data/test/app.test.js b/2-structured-data/test/app.test.js
index 226a2b1ae..7e8a4c5ae 100644
--- a/2-structured-data/test/app.test.js
+++ b/2-structured-data/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/2-structured-data/test/cloudsql.test.js b/2-structured-data/test/cloudsql.test.js
index ff2ba5fd5..3ac8fbe5c 100644
--- a/2-structured-data/test/cloudsql.test.js
+++ b/2-structured-data/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/2-structured-data/test/datastore.test.js b/2-structured-data/test/datastore.test.js
index a4faa673b..6df5120c1 100644
--- a/2-structured-data/test/datastore.test.js
+++ b/2-structured-data/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/3-binary-data/app.js b/3-binary-data/app.js
index 976d3db4d..74b2ddaaf 100644
--- a/3-binary-data/app.js
+++ b/3-binary-data/app.js
@@ -39,7 +39,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   console.error(err);
   // If our routes specified a specific response, then send that. Otherwise,
diff --git a/3-binary-data/books/api.js b/3-binary-data/books/api.js
index 98b65fc58..c81c35520 100644
--- a/3-binary-data/books/api.js
+++ b/3-binary-data/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/3-binary-data/books/crud.js b/3-binary-data/books/crud.js
index f05d129b6..c1c3623c9 100644
--- a/3-binary-data/books/crud.js
+++ b/3-binary-data/books/crud.js
@@ -17,14 +17,14 @@ const express = require('express');
 const bodyParser = require('body-parser');
 const images = require('../lib/images');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
 const router = express.Router();
 
 // Automatically parse request body as form data
-router.use(bodyParser.urlencoded({ extended: false }));
+router.use(bodyParser.urlencoded({extended: false}));
 
 // Set Content-Type for all responses for these routes
 router.use((req, res, next) => {
@@ -45,7 +45,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -58,7 +58,7 @@ router.get('/', (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 
@@ -106,7 +106,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -151,7 +151,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -162,7 +162,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/3-binary-data/books/model-cloudsql.js b/3-binary-data/books/model-cloudsql.js
index 2e4d0735b..0fe6729cf 100644
--- a/3-binary-data/books/model-cloudsql.js
+++ b/3-binary-data/books/model-cloudsql.js
@@ -20,19 +20,23 @@ const config = require('../config');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -44,7 +48,7 @@ function list (limit, token, cb) {
   );
 }
 
-function create (data, cb) {
+function create(data, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -54,13 +58,15 @@ function create (data, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -68,21 +74,21 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
-function update (id, data, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      read(id, cb);
-    });
+function update(id, data, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    read(id, cb);
+  });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -92,7 +98,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -101,7 +107,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql database.
-    This script will not modify any existing tables.`);
+    This script will not modify any existing tables.`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -111,10 +118,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -131,7 +143,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/3-binary-data/books/model-datastore.js b/3-binary-data/books/model-datastore.js
index 6efbab9f6..2a5ff7db9 100644
--- a/3-binary-data/books/model-datastore.js
+++ b/3-binary-data/books/model-datastore.js
@@ -17,7 +17,7 @@ const Datastore = require('@google-cloud/datastore');
 const config = require('../config');
 
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 
@@ -37,7 +37,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -65,17 +65,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   let results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -85,8 +85,9 @@ function toDatastore (obj, nonIndexed) {
 // The ``limit`` argument determines the maximum amount of results to
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -96,7 +97,10 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -104,7 +108,7 @@ function list (limit, token, cb) {
 // Creates a new book or updates an existing book with new data. The provided
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
-function update (id, data, cb) {
+function update(id, data, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -114,29 +118,26 @@ function update (id, data, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      data.id = entity.key.id;
-      cb(err, err ? null : data);
-    }
-  );
+  ds.save(entity, err => {
+    data.id = entity.key.id;
+    cb(err, err ? null : data);
+  });
 }
 
-function create (data, cb) {
+function create(data, cb) {
   update(null, data, cb);
 }
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -147,7 +148,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -157,5 +158,5 @@ module.exports = {
   read,
   update,
   delete: _delete,
-  list
+  list,
 };
diff --git a/3-binary-data/config.js b/3-binary-data/config.js
index c6fa002d6..ac6493886 100644
--- a/3-binary-data/config.js
+++ b/3-binary-data/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -30,10 +30,10 @@ nconf
     'MYSQL_USER',
     'MYSQL_PASSWORD',
     'NODE_ENV',
-    'PORT'
+    'PORT',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // Typically you will create a bucket with the same name as your project ID.
@@ -51,7 +51,7 @@ nconf
     MYSQL_USER: '',
     MYSQL_PASSWORD: '',
 
-    PORT: 8080
+    PORT: 8080,
   });
 
 // Check for required settings
@@ -66,8 +66,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   }
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/3-binary-data/lib/images.js b/3-binary-data/lib/images.js
index 288f81b8c..84fdb0650 100644
--- a/3-binary-data/lib/images.js
+++ b/3-binary-data/lib/images.js
@@ -19,7 +19,7 @@ const config = require('../config');
 const CLOUD_BUCKET = config.get('CLOUD_BUCKET');
 
 const storage = Storage({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const bucket = storage.bucket(CLOUD_BUCKET);
 
@@ -27,7 +27,7 @@ const bucket = storage.bucket(CLOUD_BUCKET);
 // object.
 // The object's ACL has to be set to public read.
 // [START public_url]
-function getPublicUrl (filename) {
+function getPublicUrl(filename) {
   return `https://storage.googleapis.com/${CLOUD_BUCKET}/${filename}`;
 }
 // [END public_url]
@@ -37,7 +37,7 @@ function getPublicUrl (filename) {
 // * ``cloudStorageObject`` the object name in cloud storage.
 // * ``cloudStoragePublicUrl`` the public url to the object.
 // [START process]
-function sendUploadToGCS (req, res, next) {
+function sendUploadToGCS(req, res, next) {
   if (!req.file) {
     return next();
   }
@@ -47,12 +47,12 @@ function sendUploadToGCS (req, res, next) {
 
   const stream = file.createWriteStream({
     metadata: {
-      contentType: req.file.mimetype
+      contentType: req.file.mimetype,
     },
-    resumable: false
+    resumable: false,
   });
 
-  stream.on('error', (err) => {
+  stream.on('error', err => {
     req.file.cloudStorageError = err;
     next(err);
   });
@@ -77,13 +77,13 @@ const Multer = require('multer');
 const multer = Multer({
   storage: Multer.MemoryStorage,
   limits: {
-    fileSize: 5 * 1024 * 1024 // no larger than 5mb
-  }
+    fileSize: 5 * 1024 * 1024, // no larger than 5mb
+  },
 });
 // [END multer]
 
 module.exports = {
   getPublicUrl,
   sendUploadToGCS,
-  multer
+  multer,
 };
diff --git a/3-binary-data/package.json b/3-binary-data/package.json
index 78259b49e..4afccff0c 100644
--- a/3-binary-data/package.json
+++ b/3-binary-data/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node app.js",
     "test": "repo-tools test app && ava -t 30s --tap test/*.test.js",
diff --git a/3-binary-data/test/_api-tests.js b/3-binary-data/test/_api-tests.js
index e422353ca..31af46300 100644
--- a/3-binary-data/test/_api-tests.js
+++ b/3-binary-data/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       // .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/3-binary-data/test/_crud-tests.js b/3-binary-data/test/_crud-tests.js
index f4fc19a29..6fad68fee 100644
--- a/3-binary-data/test/_crud-tests.js
+++ b/3-binary-data/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .send(`title=my%20book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         id = idPart;
@@ -89,19 +89,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -113,12 +113,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -126,47 +126,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .send(`title=my%20other%20book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
-    const expected =
-      /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
+  test.serial.cb(`should show edit book form`, t => {
+    const expected = /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -174,7 +173,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/3-binary-data/test/_test-config.js b/3-binary-data/test/_test-config.js
index 4f05f339e..b21555909 100644
--- a/3-binary-data/test/_test-config.js
+++ b/3-binary-data/test/_test-config.js
@@ -24,10 +24,10 @@ module.exports = {
   cmd: `app`,
   port: PORT,
   env: {
-    PORT: PORT
+    PORT: PORT,
   },
   url: `http://localhost:${PORT}`,
   version: process.env.GAE_VERSION || TESTNAME,
   project: process.env.GCLOUD_PROJECT,
-  msg: `Bookshelf`
+  msg: `Bookshelf`,
 };
diff --git a/3-binary-data/test/app.test.js b/3-binary-data/test/app.test.js
index f8e288424..cbd8a48d5 100644
--- a/3-binary-data/test/app.test.js
+++ b/3-binary-data/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/3-binary-data/test/cloudsql.test.js b/3-binary-data/test/cloudsql.test.js
index ff2ba5fd5..3ac8fbe5c 100644
--- a/3-binary-data/test/cloudsql.test.js
+++ b/3-binary-data/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/3-binary-data/test/datastore.test.js b/3-binary-data/test/datastore.test.js
index a4faa673b..6df5120c1 100644
--- a/3-binary-data/test/datastore.test.js
+++ b/3-binary-data/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/4-auth/app.js b/4-auth/app.js
index 5b7506e30..0b7a64156 100644
--- a/4-auth/app.js
+++ b/4-auth/app.js
@@ -33,20 +33,21 @@ const sessionConfig = {
   resave: false,
   saveUninitialized: false,
   secret: config.get('SECRET'),
-  signed: true
+  signed: true,
 };
 
 // In production use the Memcache instance to store session data,
 // otherwise fallback to the default MemoryStore in development.
 if (config.get('NODE_ENV') === 'production' && config.get('MEMCACHE_URL')) {
-  if (config.get('MEMCACHE_USERNAME') && (config.get('MEMCACHE_PASSWORD'))) {
+  if (config.get('MEMCACHE_USERNAME') && config.get('MEMCACHE_PASSWORD')) {
     sessionConfig.store = new MemcachedStore({
       servers: [config.get('MEMCACHE_URL')],
       username: config.get('MEMCACHE_USERNAME'),
-      password: config.get('MEMCACHE_PASSWORD')});
+      password: config.get('MEMCACHE_PASSWORD'),
+    });
   } else {
     sessionConfig.store = new MemcachedStore({
-      servers: [config.get('MEMCACHE_URL')]
+      servers: [config.get('MEMCACHE_URL')],
     });
   }
 }
@@ -74,7 +75,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   console.error(err);
   // If our routes specified a specific response, then send that. Otherwise,
diff --git a/4-auth/books/api.js b/4-auth/books/api.js
index 98b65fc58..c81c35520 100644
--- a/4-auth/books/api.js
+++ b/4-auth/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/4-auth/books/crud.js b/4-auth/books/crud.js
index 1090bab3d..7ba1c07ab 100644
--- a/4-auth/books/crud.js
+++ b/4-auth/books/crud.js
@@ -17,7 +17,7 @@ const express = require('express');
 const images = require('../lib/images');
 const oauth2 = require('../lib/oauth2');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -46,7 +46,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -59,14 +59,14 @@ router.get('/mine', oauth2.required, (req, res, next) => {
     req.user.id,
     10,
     req.query.pageToken,
-    (err, entities, cursor, apiResponse) => {
+    (err, entities, cursor) => {
       if (err) {
         next(err);
         return;
       }
       res.render('books/list.pug', {
         books: entities,
-        nextPageToken: cursor
+        nextPageToken: cursor,
       });
     }
   );
@@ -81,7 +81,7 @@ router.get('/mine', oauth2.required, (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 
@@ -137,7 +137,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -182,7 +182,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -193,7 +193,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/4-auth/books/model-cloudsql.js b/4-auth/books/model-cloudsql.js
index aed30d772..ba7cdc8c9 100644
--- a/4-auth/books/model-cloudsql.js
+++ b/4-auth/books/model-cloudsql.js
@@ -20,19 +20,23 @@ const config = require('../config');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -45,7 +49,7 @@ function list (limit, token, cb) {
 }
 
 // [START listby]
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
     'SELECT * FROM `books` WHERE `createdById` = ? LIMIT ? OFFSET ?',
@@ -57,11 +61,12 @@ function listBy (userId, limit, token, cb) {
       }
       const hasMore = results.length === limit ? token + results.length : false;
       cb(null, results, hasMore);
-    });
+    }
+  );
 }
 // [END listby]
 
-function create (data, cb) {
+function create(data, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -71,13 +76,15 @@ function create (data, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -85,21 +92,21 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
-function update (id, data, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      read(id, cb);
-    });
+function update(id, data, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    read(id, cb);
+  });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -110,7 +117,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -119,7 +126,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql
-    database.\n This script will not modify any existing tables.\n`);
+    database.\n This script will not modify any existing tables.\n`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -129,10 +137,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -149,7 +162,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/4-auth/books/model-datastore.js b/4-auth/books/model-datastore.js
index e24916630..56af38a12 100644
--- a/4-auth/books/model-datastore.js
+++ b/4-auth/books/model-datastore.js
@@ -17,7 +17,7 @@ const Datastore = require('@google-cloud/datastore');
 const config = require('../config');
 
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 
@@ -37,7 +37,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -65,17 +65,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   let results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -85,8 +85,9 @@ function toDatastore (obj, nonIndexed) {
 // The ``limit`` argument determines the maximum amount of results to
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -96,7 +97,10 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -104,8 +108,9 @@ function list (limit, token, cb) {
 // Similar to ``list``, but only lists the books created by the specified
 // user.
 // [START listby]
-function listBy (userId, limit, token, cb) {
-  const q = ds.createQuery([kind])
+function listBy(userId, limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .filter('createdById', '=', userId)
     .limit(limit)
     .start(token);
@@ -115,7 +120,10 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -124,7 +132,7 @@ function listBy (userId, limit, token, cb) {
 // Creates a new book or updates an existing book with new data. The provided
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
-function update (id, data, cb) {
+function update(id, data, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -134,25 +142,22 @@ function update (id, data, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      data.id = entity.key.id;
-      cb(err, err ? null : data);
-    }
-  );
+  ds.save(entity, err => {
+    data.id = entity.key.id;
+    cb(err, err ? null : data);
+  });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -163,7 +168,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -176,5 +181,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/4-auth/config.js b/4-auth/config.js
index 6602fcd69..7bdcb1bae 100644
--- a/4-auth/config.js
+++ b/4-auth/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -37,10 +37,10 @@ nconf
     'OAUTH2_CLIENT_SECRET',
     'OAUTH2_CALLBACK',
     'PORT',
-    'SECRET'
+    'SECRET',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // Typically you will create a bucket with the same name as your project ID.
@@ -65,7 +65,7 @@ nconf
     PORT: 8080,
 
     // Set this a secret string of your choosing
-    SECRET: 'keyboardcat'
+    SECRET: 'keyboardcat',
   });
 
 // Check for required settings
@@ -82,8 +82,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   }
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/4-auth/lib/images.js b/4-auth/lib/images.js
index 174c32c65..c9456a887 100644
--- a/4-auth/lib/images.js
+++ b/4-auth/lib/images.js
@@ -19,14 +19,14 @@ const config = require('../config');
 const CLOUD_BUCKET = config.get('CLOUD_BUCKET');
 
 const storage = Storage({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const bucket = storage.bucket(CLOUD_BUCKET);
 
 // Returns the public, anonymously accessable URL to a given Cloud Storage
 // object.
 // The object's ACL has to be set to public read.
-function getPublicUrl (filename) {
+function getPublicUrl(filename) {
   return `https://storage.googleapis.com/${CLOUD_BUCKET}/${filename}`;
 }
 
@@ -34,7 +34,7 @@ function getPublicUrl (filename) {
 // req.file is processed and will have two new properties:
 // * ``cloudStorageObject`` the object name in cloud storage.
 // * ``cloudStoragePublicUrl`` the public url to the object.
-function sendUploadToGCS (req, res, next) {
+function sendUploadToGCS(req, res, next) {
   if (!req.file) {
     return next();
   }
@@ -43,12 +43,12 @@ function sendUploadToGCS (req, res, next) {
   const file = bucket.file(gcsname);
   const stream = file.createWriteStream({
     metadata: {
-      contentType: req.file.mimetype
+      contentType: req.file.mimetype,
     },
-    resumable: false
+    resumable: false,
   });
 
-  stream.on('error', (err) => {
+  stream.on('error', err => {
     req.file.cloudStorageError = err;
     next(err);
   });
@@ -71,12 +71,12 @@ const Multer = require('multer');
 const multer = Multer({
   storage: Multer.MemoryStorage,
   limits: {
-    fileSize: 5 * 1024 * 1024 // no larger than 5mb
-  }
+    fileSize: 5 * 1024 * 1024, // no larger than 5mb
+  },
 });
 
 module.exports = {
   getPublicUrl,
   sendUploadToGCS,
-  multer
+  multer,
 };
diff --git a/4-auth/lib/oauth2.js b/4-auth/lib/oauth2.js
index fa63e7270..f4ac3ec84 100644
--- a/4-auth/lib/oauth2.js
+++ b/4-auth/lib/oauth2.js
@@ -20,7 +20,7 @@ const config = require('../config');
 const passport = require('passport');
 const GoogleStrategy = require('passport-google-oauth20').Strategy;
 
-function extractProfile (profile) {
+function extractProfile(profile) {
   let imageUrl = '';
   if (profile.photos && profile.photos.length) {
     imageUrl = profile.photos[0].value;
@@ -28,7 +28,7 @@ function extractProfile (profile) {
   return {
     id: profile.id,
     displayName: profile.displayName,
-    image: imageUrl
+    image: imageUrl,
   };
 }
 
@@ -39,16 +39,21 @@ function extractProfile (profile) {
 // along with the user's profile. The function must invoke `cb` with a user
 // object, which will be set at `req.user` in route handlers after
 // authentication.
-passport.use(new GoogleStrategy({
-  clientID: config.get('OAUTH2_CLIENT_ID'),
-  clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
-  callbackURL: config.get('OAUTH2_CALLBACK'),
-  accessType: 'offline'
-}, (accessToken, refreshToken, profile, cb) => {
-  // Extract the minimal profile information we need from the profile object
-  // provided by Google
-  cb(null, extractProfile(profile));
-}));
+passport.use(
+  new GoogleStrategy(
+    {
+      clientID: config.get('OAUTH2_CLIENT_ID'),
+      clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
+      callbackURL: config.get('OAUTH2_CALLBACK'),
+      accessType: 'offline',
+    },
+    (accessToken, refreshToken, profile, cb) => {
+      // Extract the minimal profile information we need from the profile object
+      // provided by Google
+      cb(null, extractProfile(profile));
+    }
+  )
+);
 
 passport.serializeUser((user, cb) => {
   cb(null, user);
@@ -64,7 +69,7 @@ const router = express.Router();
 // Middleware that requires the user to be logged in. If the user is not logged
 // in, it will redirect the user to authorize the application and then return
 // them to the original URL they requested.
-function authRequired (req, res, next) {
+function authRequired(req, res, next) {
   if (!req.user) {
     req.session.oauth2return = req.originalUrl;
     return res.redirect('/auth/login');
@@ -74,10 +79,14 @@ function authRequired (req, res, next) {
 
 // Middleware that exposes the user's profile as well as login/logout URLs to
 // any templates. These are available as `profile`, `login`, and `logout`.
-function addTemplateVariables (req, res, next) {
+function addTemplateVariables(req, res, next) {
   res.locals.profile = req.user;
-  res.locals.login = `/auth/login?return=${encodeURIComponent(req.originalUrl)}`;
-  res.locals.logout = `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`;
+  res.locals.login = `/auth/login?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
+  res.locals.logout = `/auth/logout?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
   next();
 }
 // [END middleware]
@@ -102,7 +111,7 @@ router.get(
   },
 
   // Start OAuth 2 flow using Passport.js
-  passport.authenticate('google', { scope: ['email', 'profile'] })
+  passport.authenticate('google', {scope: ['email', 'profile']})
 );
 // [END authorize]
 
@@ -135,5 +144,5 @@ module.exports = {
   extractProfile: extractProfile,
   router: router,
   required: authRequired,
-  template: addTemplateVariables
+  template: addTemplateVariables,
 };
diff --git a/4-auth/package.json b/4-auth/package.json
index b3160efeb..9ac90e57a 100644
--- a/4-auth/package.json
+++ b/4-auth/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node app.js",
     "test": "repo-tools test app && ava -t 30s --tap test/*.test.js",
@@ -78,6 +50,7 @@
     "@google-cloud/nodejs-repo-tools": "^3.0.0",
     "ava": "0.25.0",
     "proxyquire": "2.1.0",
-    "sinon": "^7.0.0"
+    "sinon": "^7.0.0",
+    "supertest": "^3.3.0"
   }
 }
diff --git a/4-auth/test/_api-tests.js b/4-auth/test/_api-tests.js
index e422353ca..31af46300 100644
--- a/4-auth/test/_api-tests.js
+++ b/4-auth/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       // .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/4-auth/test/_crud-tests.js b/4-auth/test/_crud-tests.js
index 53abe89e2..9be19cd3f 100644
--- a/4-auth/test/_crud-tests.js
+++ b/4-auth/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .field(`title`, `my book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         id = idPart;
@@ -89,19 +89,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -113,12 +113,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -126,46 +126,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .field(`title`, `my other book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
+  test.serial.cb(`should show edit book form`, t => {
     const expected = /"title" value="my other book"/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -173,7 +173,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/4-auth/test/_test-config.js b/4-auth/test/_test-config.js
index 4f5706a2d..2298626ac 100644
--- a/4-auth/test/_test-config.js
+++ b/4-auth/test/_test-config.js
@@ -24,10 +24,10 @@ module.exports = {
   cmd: `app`,
   port: PORT,
   env: {
-    PORT: PORT
+    PORT: PORT,
   },
   url: `http://localhost:${PORT}`,
   version: process.env.GAE_VERSION || TESTNAME,
   project: process.env.GCLOUD_PROJECT,
-  msg: `Bookshelf`
+  msg: `Bookshelf`,
 };
diff --git a/4-auth/test/app.test.js b/4-auth/test/app.test.js
index 0e03b050c..a33b28615 100644
--- a/4-auth/test/app.test.js
+++ b/4-auth/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/4-auth/test/cloudsql.test.js b/4-auth/test/cloudsql.test.js
index ff2ba5fd5..3ac8fbe5c 100644
--- a/4-auth/test/cloudsql.test.js
+++ b/4-auth/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/4-auth/test/datastore.test.js b/4-auth/test/datastore.test.js
index a4faa673b..6df5120c1 100644
--- a/4-auth/test/datastore.test.js
+++ b/4-auth/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/4-auth/test/oauth2.test.js b/4-auth/test/oauth2.test.js
index a384a0f3e..40fdcd558 100644
--- a/4-auth/test/oauth2.test.js
+++ b/4-auth/test/oauth2.test.js
@@ -32,26 +32,26 @@ const getPassportMock = () => {
     authenticate: sinon.stub().returns((req, res, next) => {
       req.session.oauth2return = `/another/path`;
       next();
-    })
+    }),
   };
 };
 
-test.cb(`should start authorization`, (t) => {
+test.cb(`should start authorization`, t => {
   const passportMock = getPassportMock();
-  passportMock.authenticate = sinon.stub().returns((req, res, next) => {
+  passportMock.authenticate = sinon.stub().returns((req, res) => {
     t.is(req.session.oauth2return, `/some/path`);
     res.redirect(`/auth/google/callback?code=foo`);
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/login?return=%2Fsome%2Fpath`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/auth\/google\/callback\?code=foo/);
       t.true(passportMock.initialize.calledOnce);
@@ -61,29 +61,28 @@ test.cb(`should start authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test.cb(`should finish authorization`, (t) => {
+test.cb(`should finish authorization`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
-    './lib/oauth2': oauth2
+    './lib/oauth2': oauth2,
   });
   request(app)
     .get(`/auth/google/callback?code=foo`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/another\/path/);
       t.true(passportMock.initialize.calledOnce);
@@ -93,22 +92,21 @@ test.cb(`should finish authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
       t.deepEqual(
         oauth2.extractProfile({
-          photos: [{ value: `image.jpg` }],
+          photos: [{value: `image.jpg`}],
           id: 1,
-          displayName: `Joe Developer`
+          displayName: `Joe Developer`,
         }),
         {
           id: 1,
           displayName: `Joe Developer`,
-          image: `image.jpg`
+          image: `image.jpg`,
         }
       );
       const serializeUser = passportMock.serializeUser.firstCall.args[0];
@@ -127,18 +125,18 @@ test.cb(`should finish authorization`, (t) => {
     .end(t.end);
 });
 
-test.cb(`should logout`, (t) => {
+test.cb(`should logout`, t => {
   const passportMock = getPassportMock();
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/logout`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \//);
       t.true(passportMock.initialize.calledOnce);
@@ -148,28 +146,27 @@ test.cb(`should logout`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test(`should require authentication`, (t) => {
+test(`should require authentication`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {},
-    session: {}
+    session: {},
   };
   const res = {
-    redirect: sinon.stub()
+    redirect: sinon.stub(),
   };
   const next = sinon.stub();
   oauth2.required(req, res, next);
@@ -183,30 +180,32 @@ test(`should require authentication`, (t) => {
   t.is(res.redirect.firstCall.args[0], `/auth/login`);
 });
 
-test(`should add template variables`, (t) => {
+test(`should add template variables`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {
       id: 1,
       displayName: `Joe Developer`,
-      image: `image.jpg`
-    }
+      image: `image.jpg`,
+    },
   };
   const res = {
-    locals: {}
+    locals: {},
   };
   const next = sinon.stub();
   oauth2.template(req, res, next);
   t.true(next.calledOnce);
   t.is(res.locals.profile, req.user);
   t.is(
-    res.locals.login, `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.login,
+    `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
   );
   t.is(
-    res.locals.logout, `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.logout,
+    `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
   );
 });
diff --git a/5-logging/app.js b/5-logging/app.js
index 0fb91fc8b..8ea8a6510 100644
--- a/5-logging/app.js
+++ b/5-logging/app.js
@@ -47,20 +47,21 @@ const sessionConfig = {
   resave: false,
   saveUninitialized: false,
   secret: config.get('SECRET'),
-  signed: true
+  signed: true,
 };
 
 // In production use the Memcache instance to store session data,
 // otherwise fallback to the default MemoryStore in development.
 if (config.get('NODE_ENV') === 'production' && config.get('MEMCACHE_URL')) {
-  if (config.get('MEMCACHE_USERNAME') && (config.get('MEMCACHE_PASSWORD'))) {
+  if (config.get('MEMCACHE_USERNAME') && config.get('MEMCACHE_PASSWORD')) {
     sessionConfig.store = new MemcachedStore({
       servers: [config.get('MEMCACHE_URL')],
       username: config.get('MEMCACHE_USERNAME'),
-      password: config.get('MEMCACHE_PASSWORD')});
+      password: config.get('MEMCACHE_PASSWORD'),
+    });
   } else {
     sessionConfig.store = new MemcachedStore({
-      servers: [config.get('MEMCACHE_URL')]
+      servers: [config.get('MEMCACHE_URL')],
     });
   }
 }
@@ -93,7 +94,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   // If our routes specified a specific response, then send that. Otherwise,
   // send a generic message so as not to leak anything.
diff --git a/5-logging/books/api.js b/5-logging/books/api.js
index 98b65fc58..c81c35520 100644
--- a/5-logging/books/api.js
+++ b/5-logging/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/5-logging/books/crud.js b/5-logging/books/crud.js
index 896603b7b..06d902a96 100644
--- a/5-logging/books/crud.js
+++ b/5-logging/books/crud.js
@@ -17,7 +17,7 @@ const express = require('express');
 const images = require('../lib/images');
 const oauth2 = require('../lib/oauth2');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -46,7 +46,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -58,14 +58,14 @@ router.get('/mine', oauth2.required, (req, res, next) => {
     req.user.id,
     10,
     req.query.pageToken,
-    (err, entities, cursor, apiResponse) => {
+    (err, entities, cursor) => {
       if (err) {
         next(err);
         return;
       }
       res.render('books/list.pug', {
         books: entities,
-        nextPageToken: cursor
+        nextPageToken: cursor,
       });
     }
   );
@@ -79,7 +79,7 @@ router.get('/mine', oauth2.required, (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 
@@ -135,7 +135,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -180,7 +180,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -191,7 +191,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/5-logging/books/model-cloudsql.js b/5-logging/books/model-cloudsql.js
index 1b9f30c25..b51bcd928 100644
--- a/5-logging/books/model-cloudsql.js
+++ b/5-logging/books/model-cloudsql.js
@@ -20,19 +20,23 @@ const config = require('../config');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -44,7 +48,7 @@ function list (limit, token, cb) {
   );
 }
 
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
     'SELECT * FROM `books` WHERE `createdById` = ? LIMIT ? OFFSET ?',
@@ -56,10 +60,11 @@ function listBy (userId, limit, token, cb) {
       }
       const hasMore = results.length === limit ? token + results.length : false;
       cb(null, results, hasMore);
-    });
+    }
+  );
 }
 
-function create (data, cb) {
+function create(data, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -69,13 +74,15 @@ function create (data, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -83,21 +90,21 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
-function update (id, data, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      read(id, cb);
-    });
+function update(id, data, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    read(id, cb);
+  });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -108,7 +115,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -117,7 +124,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql
-    database.\n This script will not modify any existing tables.\n`);
+    database.\n This script will not modify any existing tables.\n`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -127,10 +135,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -147,7 +160,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/5-logging/books/model-datastore.js b/5-logging/books/model-datastore.js
index 2f9470e74..e1ec141e9 100644
--- a/5-logging/books/model-datastore.js
+++ b/5-logging/books/model-datastore.js
@@ -17,7 +17,7 @@ const Datastore = require('@google-cloud/datastore');
 const config = require('../config');
 
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 
@@ -37,7 +37,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -65,17 +65,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   let results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -85,8 +85,9 @@ function toDatastore (obj, nonIndexed) {
 // The ``limit`` argument determines the maximum amount of results to
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -96,15 +97,19 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
 
 // Similar to ``list``, but only lists the books created by the specified
 // user.
-function listBy (userId, limit, token, cb) {
-  const q = ds.createQuery([kind])
+function listBy(userId, limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .filter('createdById', '=', userId)
     .limit(limit)
     .start(token);
@@ -114,7 +119,10 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -122,7 +130,7 @@ function listBy (userId, limit, token, cb) {
 // Creates a new book or updates an existing book with new data. The provided
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
-function update (id, data, cb) {
+function update(id, data, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -132,25 +140,22 @@ function update (id, data, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      data.id = entity.key.id;
-      cb(err, err ? null : data);
-    }
-  );
+  ds.save(entity, err => {
+    data.id = entity.key.id;
+    cb(err, err ? null : data);
+  });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -161,7 +166,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -174,5 +179,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/5-logging/config.js b/5-logging/config.js
index 68b3c5d05..c82b9d5a7 100644
--- a/5-logging/config.js
+++ b/5-logging/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -37,10 +37,10 @@ nconf
     'OAUTH2_CLIENT_SECRET',
     'OAUTH2_CALLBACK',
     'PORT',
-    'SECRET'
+    'SECRET',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // Typically you will create a bucket with the same name as your project ID.
@@ -65,7 +65,7 @@ nconf
     PORT: 8080,
 
     // Set this a secret string of your choosing
-    SECRET: 'keyboardcat'
+    SECRET: 'keyboardcat',
   });
 
 // Check for required settings
@@ -82,8 +82,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   }
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/5-logging/lib/images.js b/5-logging/lib/images.js
index 174c32c65..c9456a887 100644
--- a/5-logging/lib/images.js
+++ b/5-logging/lib/images.js
@@ -19,14 +19,14 @@ const config = require('../config');
 const CLOUD_BUCKET = config.get('CLOUD_BUCKET');
 
 const storage = Storage({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const bucket = storage.bucket(CLOUD_BUCKET);
 
 // Returns the public, anonymously accessable URL to a given Cloud Storage
 // object.
 // The object's ACL has to be set to public read.
-function getPublicUrl (filename) {
+function getPublicUrl(filename) {
   return `https://storage.googleapis.com/${CLOUD_BUCKET}/${filename}`;
 }
 
@@ -34,7 +34,7 @@ function getPublicUrl (filename) {
 // req.file is processed and will have two new properties:
 // * ``cloudStorageObject`` the object name in cloud storage.
 // * ``cloudStoragePublicUrl`` the public url to the object.
-function sendUploadToGCS (req, res, next) {
+function sendUploadToGCS(req, res, next) {
   if (!req.file) {
     return next();
   }
@@ -43,12 +43,12 @@ function sendUploadToGCS (req, res, next) {
   const file = bucket.file(gcsname);
   const stream = file.createWriteStream({
     metadata: {
-      contentType: req.file.mimetype
+      contentType: req.file.mimetype,
     },
-    resumable: false
+    resumable: false,
   });
 
-  stream.on('error', (err) => {
+  stream.on('error', err => {
     req.file.cloudStorageError = err;
     next(err);
   });
@@ -71,12 +71,12 @@ const Multer = require('multer');
 const multer = Multer({
   storage: Multer.MemoryStorage,
   limits: {
-    fileSize: 5 * 1024 * 1024 // no larger than 5mb
-  }
+    fileSize: 5 * 1024 * 1024, // no larger than 5mb
+  },
 });
 
 module.exports = {
   getPublicUrl,
   sendUploadToGCS,
-  multer
+  multer,
 };
diff --git a/5-logging/lib/logging.js b/5-logging/lib/logging.js
index 62326369f..9a376123b 100644
--- a/5-logging/lib/logging.js
+++ b/5-logging/lib/logging.js
@@ -15,7 +15,8 @@
 
 const winston = require('winston');
 const expressWinston = require('express-winston');
-const StackdriverTransport = require('@google-cloud/logging-winston').LoggingWinston;
+const StackdriverTransport = require('@google-cloud/logging-winston')
+  .LoggingWinston;
 
 const colorize = process.env.NODE_ENV !== 'production';
 
@@ -26,11 +27,11 @@ const requestLogger = expressWinston.logger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: false,
-      colorize: colorize
-    })
+      colorize: colorize,
+    }),
   ],
   expressFormat: true,
-  meta: false
+  meta: false,
 });
 // [END requests]
 
@@ -41,9 +42,9 @@ const errorLogger = expressWinston.errorLogger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: true,
-      colorize: colorize
-    })
-  ]
+      colorize: colorize,
+    }),
+  ],
 });
 // [END errors]
 
@@ -56,5 +57,5 @@ module.exports = {
   log: winston.log,
   verbose: winston.verbose,
   debug: winston.debug,
-  silly: winston.silly
+  silly: winston.silly,
 };
diff --git a/5-logging/lib/oauth2.js b/5-logging/lib/oauth2.js
index fa63e7270..f4ac3ec84 100644
--- a/5-logging/lib/oauth2.js
+++ b/5-logging/lib/oauth2.js
@@ -20,7 +20,7 @@ const config = require('../config');
 const passport = require('passport');
 const GoogleStrategy = require('passport-google-oauth20').Strategy;
 
-function extractProfile (profile) {
+function extractProfile(profile) {
   let imageUrl = '';
   if (profile.photos && profile.photos.length) {
     imageUrl = profile.photos[0].value;
@@ -28,7 +28,7 @@ function extractProfile (profile) {
   return {
     id: profile.id,
     displayName: profile.displayName,
-    image: imageUrl
+    image: imageUrl,
   };
 }
 
@@ -39,16 +39,21 @@ function extractProfile (profile) {
 // along with the user's profile. The function must invoke `cb` with a user
 // object, which will be set at `req.user` in route handlers after
 // authentication.
-passport.use(new GoogleStrategy({
-  clientID: config.get('OAUTH2_CLIENT_ID'),
-  clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
-  callbackURL: config.get('OAUTH2_CALLBACK'),
-  accessType: 'offline'
-}, (accessToken, refreshToken, profile, cb) => {
-  // Extract the minimal profile information we need from the profile object
-  // provided by Google
-  cb(null, extractProfile(profile));
-}));
+passport.use(
+  new GoogleStrategy(
+    {
+      clientID: config.get('OAUTH2_CLIENT_ID'),
+      clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
+      callbackURL: config.get('OAUTH2_CALLBACK'),
+      accessType: 'offline',
+    },
+    (accessToken, refreshToken, profile, cb) => {
+      // Extract the minimal profile information we need from the profile object
+      // provided by Google
+      cb(null, extractProfile(profile));
+    }
+  )
+);
 
 passport.serializeUser((user, cb) => {
   cb(null, user);
@@ -64,7 +69,7 @@ const router = express.Router();
 // Middleware that requires the user to be logged in. If the user is not logged
 // in, it will redirect the user to authorize the application and then return
 // them to the original URL they requested.
-function authRequired (req, res, next) {
+function authRequired(req, res, next) {
   if (!req.user) {
     req.session.oauth2return = req.originalUrl;
     return res.redirect('/auth/login');
@@ -74,10 +79,14 @@ function authRequired (req, res, next) {
 
 // Middleware that exposes the user's profile as well as login/logout URLs to
 // any templates. These are available as `profile`, `login`, and `logout`.
-function addTemplateVariables (req, res, next) {
+function addTemplateVariables(req, res, next) {
   res.locals.profile = req.user;
-  res.locals.login = `/auth/login?return=${encodeURIComponent(req.originalUrl)}`;
-  res.locals.logout = `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`;
+  res.locals.login = `/auth/login?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
+  res.locals.logout = `/auth/logout?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
   next();
 }
 // [END middleware]
@@ -102,7 +111,7 @@ router.get(
   },
 
   // Start OAuth 2 flow using Passport.js
-  passport.authenticate('google', { scope: ['email', 'profile'] })
+  passport.authenticate('google', {scope: ['email', 'profile']})
 );
 // [END authorize]
 
@@ -135,5 +144,5 @@ module.exports = {
   extractProfile: extractProfile,
   router: router,
   required: authRequired,
-  template: addTemplateVariables
+  template: addTemplateVariables,
 };
diff --git a/5-logging/package.json b/5-logging/package.json
index 1fd1b9094..efc721e1d 100644
--- a/5-logging/package.json
+++ b/5-logging/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node app.js",
     "test": "repo-tools test app && ava -t 30s --tap test/*.test.js",
diff --git a/5-logging/test/_api-tests.js b/5-logging/test/_api-tests.js
index e422353ca..31af46300 100644
--- a/5-logging/test/_api-tests.js
+++ b/5-logging/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       // .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/5-logging/test/_crud-tests.js b/5-logging/test/_crud-tests.js
index ae72bc273..a94c5d9ab 100644
--- a/5-logging/test/_crud-tests.js
+++ b/5-logging/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .field(`title`, `my book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         id = idPart;
@@ -89,19 +89,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -113,12 +113,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -126,47 +126,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .field(`title`, `my other book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
-    const expected =
-      /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
+  test.serial.cb(`should show edit book form`, t => {
+    const expected = /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -174,7 +173,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/5-logging/test/_test-config.js b/5-logging/test/_test-config.js
index 7cc2e0710..c5335181b 100644
--- a/5-logging/test/_test-config.js
+++ b/5-logging/test/_test-config.js
@@ -24,10 +24,10 @@ module.exports = {
   cmd: `app`,
   port: PORT,
   env: {
-    PORT: PORT
+    PORT: PORT,
   },
   url: `http://localhost:${PORT}`,
   version: process.env.GAE_VERSION || TESTNAME,
   project: process.env.GCLOUD_PROJECT,
-  msg: `Bookshelf`
+  msg: `Bookshelf`,
 };
diff --git a/5-logging/test/app.test.js b/5-logging/test/app.test.js
index 0e03b050c..a33b28615 100644
--- a/5-logging/test/app.test.js
+++ b/5-logging/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/5-logging/test/cloudsql.test.js b/5-logging/test/cloudsql.test.js
index ff2ba5fd5..3ac8fbe5c 100644
--- a/5-logging/test/cloudsql.test.js
+++ b/5-logging/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/5-logging/test/datastore.test.js b/5-logging/test/datastore.test.js
index a4faa673b..6df5120c1 100644
--- a/5-logging/test/datastore.test.js
+++ b/5-logging/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/5-logging/test/oauth2.test.js b/5-logging/test/oauth2.test.js
index a384a0f3e..40fdcd558 100644
--- a/5-logging/test/oauth2.test.js
+++ b/5-logging/test/oauth2.test.js
@@ -32,26 +32,26 @@ const getPassportMock = () => {
     authenticate: sinon.stub().returns((req, res, next) => {
       req.session.oauth2return = `/another/path`;
       next();
-    })
+    }),
   };
 };
 
-test.cb(`should start authorization`, (t) => {
+test.cb(`should start authorization`, t => {
   const passportMock = getPassportMock();
-  passportMock.authenticate = sinon.stub().returns((req, res, next) => {
+  passportMock.authenticate = sinon.stub().returns((req, res) => {
     t.is(req.session.oauth2return, `/some/path`);
     res.redirect(`/auth/google/callback?code=foo`);
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/login?return=%2Fsome%2Fpath`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/auth\/google\/callback\?code=foo/);
       t.true(passportMock.initialize.calledOnce);
@@ -61,29 +61,28 @@ test.cb(`should start authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test.cb(`should finish authorization`, (t) => {
+test.cb(`should finish authorization`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
-    './lib/oauth2': oauth2
+    './lib/oauth2': oauth2,
   });
   request(app)
     .get(`/auth/google/callback?code=foo`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/another\/path/);
       t.true(passportMock.initialize.calledOnce);
@@ -93,22 +92,21 @@ test.cb(`should finish authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
       t.deepEqual(
         oauth2.extractProfile({
-          photos: [{ value: `image.jpg` }],
+          photos: [{value: `image.jpg`}],
           id: 1,
-          displayName: `Joe Developer`
+          displayName: `Joe Developer`,
         }),
         {
           id: 1,
           displayName: `Joe Developer`,
-          image: `image.jpg`
+          image: `image.jpg`,
         }
       );
       const serializeUser = passportMock.serializeUser.firstCall.args[0];
@@ -127,18 +125,18 @@ test.cb(`should finish authorization`, (t) => {
     .end(t.end);
 });
 
-test.cb(`should logout`, (t) => {
+test.cb(`should logout`, t => {
   const passportMock = getPassportMock();
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/logout`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \//);
       t.true(passportMock.initialize.calledOnce);
@@ -148,28 +146,27 @@ test.cb(`should logout`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test(`should require authentication`, (t) => {
+test(`should require authentication`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {},
-    session: {}
+    session: {},
   };
   const res = {
-    redirect: sinon.stub()
+    redirect: sinon.stub(),
   };
   const next = sinon.stub();
   oauth2.required(req, res, next);
@@ -183,30 +180,32 @@ test(`should require authentication`, (t) => {
   t.is(res.redirect.firstCall.args[0], `/auth/login`);
 });
 
-test(`should add template variables`, (t) => {
+test(`should add template variables`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {
       id: 1,
       displayName: `Joe Developer`,
-      image: `image.jpg`
-    }
+      image: `image.jpg`,
+    },
   };
   const res = {
-    locals: {}
+    locals: {},
   };
   const next = sinon.stub();
   oauth2.template(req, res, next);
   t.true(next.calledOnce);
   t.is(res.locals.profile, req.user);
   t.is(
-    res.locals.login, `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.login,
+    `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
   );
   t.is(
-    res.locals.logout, `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.logout,
+    `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
   );
 });
diff --git a/6-pubsub/app.js b/6-pubsub/app.js
index 4d0e894bd..176892ef0 100644
--- a/6-pubsub/app.js
+++ b/6-pubsub/app.js
@@ -43,20 +43,21 @@ const sessionConfig = {
   resave: false,
   saveUninitialized: false,
   secret: config.get('SECRET'),
-  signed: true
+  signed: true,
 };
 
 // In production use the Memcache instance to store session data,
 // otherwise fallback to the default MemoryStore in development.
 if (config.get('NODE_ENV') === 'production' && config.get('MEMCACHE_URL')) {
-  if (config.get('MEMCACHE_USERNAME') && (config.get('MEMCACHE_PASSWORD'))) {
+  if (config.get('MEMCACHE_USERNAME') && config.get('MEMCACHE_PASSWORD')) {
     sessionConfig.store = new MemcachedStore({
       servers: [config.get('MEMCACHE_URL')],
       username: config.get('MEMCACHE_USERNAME'),
-      password: config.get('MEMCACHE_PASSWORD')});
+      password: config.get('MEMCACHE_PASSWORD'),
+    });
   } else {
     sessionConfig.store = new MemcachedStore({
-      servers: [config.get('MEMCACHE_URL')]
+      servers: [config.get('MEMCACHE_URL')],
     });
   }
 }
@@ -88,7 +89,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   // If our routes specified a specific response, then send that. Otherwise,
   // send a generic message so as not to leak anything.
diff --git a/6-pubsub/books/api.js b/6-pubsub/books/api.js
index 9e9691fe5..750a4b37b 100644
--- a/6-pubsub/books/api.js
+++ b/6-pubsub/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/6-pubsub/books/crud.js b/6-pubsub/books/crud.js
index 214207e18..5d04ea808 100644
--- a/6-pubsub/books/crud.js
+++ b/6-pubsub/books/crud.js
@@ -17,7 +17,7 @@ const express = require('express');
 const images = require('../lib/images');
 const oauth2 = require('../lib/oauth2');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -46,7 +46,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -58,14 +58,14 @@ router.get('/mine', oauth2.required, (req, res, next) => {
     req.user.id,
     10,
     req.query.pageToken,
-    (err, entities, cursor, apiResponse) => {
+    (err, entities, cursor) => {
       if (err) {
         next(err);
         return;
       }
       res.render('books/list.pug', {
         books: entities,
-        nextPageToken: cursor
+        nextPageToken: cursor,
       });
     }
   );
@@ -79,7 +79,7 @@ router.get('/mine', oauth2.required, (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 
@@ -135,7 +135,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -180,7 +180,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -191,7 +191,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/6-pubsub/books/model-cloudsql.js b/6-pubsub/books/model-cloudsql.js
index 89058e9c8..f6a436fcc 100644
--- a/6-pubsub/books/model-cloudsql.js
+++ b/6-pubsub/books/model-cloudsql.js
@@ -21,19 +21,23 @@ const background = require('../lib/background');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -45,7 +49,7 @@ function list (limit, token, cb) {
   );
 }
 
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
     'SELECT * FROM `books` WHERE `createdById` = ? LIMIT ? OFFSET ?',
@@ -57,11 +61,12 @@ function listBy (userId, limit, token, cb) {
       }
       const hasMore = results.length === limit ? token + results.length : false;
       cb(null, results, hasMore);
-    });
+    }
+  );
 }
 
 // [START create]
-function create (data, queueBook, cb) {
+function create(data, queueBook, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -75,13 +80,15 @@ function create (data, queueBook, cb) {
 }
 // [END create]
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -89,26 +96,26 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
 // [START update]
-function update (id, data, queueBook, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      if (queueBook) {
-        background.queueBook(id);
-      }
-      read(id, cb);
-    });
+function update(id, data, queueBook, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    if (queueBook) {
+      background.queueBook(id);
+    }
+    read(id, cb);
+  });
 }
 // [END update]
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -119,7 +126,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -128,7 +135,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql
-    database.\n This script will not modify any existing tables.\n`);
+    database.\n This script will not modify any existing tables.\n`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -138,10 +146,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -158,7 +171,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/6-pubsub/books/model-datastore.js b/6-pubsub/books/model-datastore.js
index 306b93264..0bc12735d 100644
--- a/6-pubsub/books/model-datastore.js
+++ b/6-pubsub/books/model-datastore.js
@@ -18,7 +18,7 @@ const config = require('../config');
 const background = require('../lib/background');
 
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 
@@ -38,7 +38,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -66,17 +66,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   let results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -86,8 +86,9 @@ function toDatastore (obj, nonIndexed) {
 // The ``limit`` argument determines the maximum amount of results to
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -97,15 +98,19 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
 
 // Similar to ``list``, but only lists the books created by the specified
 // user.
-function listBy (userId, limit, token, cb) {
-  const q = ds.createQuery([kind])
+function listBy(userId, limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .filter('createdById', '=', userId)
     .limit(limit)
     .start(token);
@@ -115,7 +120,10 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -124,7 +132,7 @@ function listBy (userId, limit, token, cb) {
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
 // [START update]
-function update (id, data, queueBook, cb) {
+function update(id, data, queueBook, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -134,33 +142,30 @@ function update (id, data, queueBook, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      data.id = entity.key.id;
-      if (queueBook) {
-        background.queueBook(data.id);
-      }
-      cb(null, data);
+  ds.save(entity, err => {
+    if (err) {
+      cb(err);
+      return;
     }
-  );
+    data.id = entity.key.id;
+    if (queueBook) {
+      background.queueBook(data.id);
+    }
+    cb(null, data);
+  });
 }
 // [END update]
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -171,7 +176,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -184,5 +189,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/6-pubsub/config.js b/6-pubsub/config.js
index 4e0aa8168..d37bf7cbe 100644
--- a/6-pubsub/config.js
+++ b/6-pubsub/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -38,10 +38,10 @@ nconf
     'OAUTH2_CALLBACK',
     'PORT',
     'SECRET',
-    'TOPIC_NAME'
+    'TOPIC_NAME',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // Typically you will create a bucket with the same name as your project ID.
@@ -71,7 +71,7 @@ nconf
     // Set this a secret string of your choosing
     SECRET: 'keyboardcat',
 
-    TOPIC_NAME: 'book-process-queue'
+    TOPIC_NAME: 'book-process-queue',
   });
 
 // Check for required settings
@@ -88,8 +88,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   }
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/6-pubsub/lib/background.js b/6-pubsub/lib/background.js
index 28c8d2630..65106e0be 100644
--- a/6-pubsub/lib/background.js
+++ b/6-pubsub/lib/background.js
@@ -20,7 +20,7 @@ const logging = require('./logging');
 const topicName = config.get('TOPIC_NAME');
 
 const pubsub = new Pubsub({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 
 // This configuration will automatically create the topic if
@@ -29,7 +29,7 @@ const pubsub = new Pubsub({
 // publishing anything to it as topics without subscribers
 // will essentially drop any messages.
 // [START topic]
-function getTopic (cb) {
+function getTopic(cb) {
   pubsub.createTopic(topicName, (err, topic) => {
     // topic already exists.
     if (err && err.code === 6) {
@@ -43,7 +43,7 @@ function getTopic (cb) {
 
 // Adds a book to the queue to be processed by the worker.
 // [START queue]
-function queueBook (bookId) {
+function queueBook(bookId) {
   getTopic((err, topic) => {
     if (err) {
       logging.error('Error occurred while getting pubsub topic', err);
@@ -52,11 +52,11 @@ function queueBook (bookId) {
 
     const data = {
       action: 'processBook',
-      bookId: bookId
+      bookId: bookId,
     };
 
     const publisher = topic.publisher();
-    publisher.publish(Buffer.from(JSON.stringify(data)), (err) => {
+    publisher.publish(Buffer.from(JSON.stringify(data)), err => {
       if (err) {
         logging.error('Error occurred while queuing background task', err);
       } else {
@@ -68,5 +68,5 @@ function queueBook (bookId) {
 // [END queue]
 
 module.exports = {
-  queueBook
+  queueBook,
 };
diff --git a/6-pubsub/lib/images.js b/6-pubsub/lib/images.js
index 159ebac81..b2afceb0b 100644
--- a/6-pubsub/lib/images.js
+++ b/6-pubsub/lib/images.js
@@ -21,32 +21,34 @@ const logging = require('./logging');
 const CLOUD_BUCKET = config.get('CLOUD_BUCKET');
 
 const storage = Storage({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const bucket = storage.bucket(CLOUD_BUCKET);
 
 // Downloads a given image (by URL) and then uploads it to
 // Google Cloud Storage. Provides the publicly accessable URL to the callback.
 // [START download_and_upload]
-function downloadAndUploadImage (sourceUrl, destFileName, cb) {
+function downloadAndUploadImage(sourceUrl, destFileName, cb) {
   const file = bucket.file(destFileName);
 
   request
     .get(sourceUrl)
-    .on('error', (err) => {
+    .on('error', err => {
       logging.warn(`Could not fetch image ${sourceUrl}`, err);
       cb(err);
     })
-    .pipe(file.createWriteStream({
-      resumable: false
-    }))
+    .pipe(
+      file.createWriteStream({
+        resumable: false,
+      })
+    )
     .on('finish', () => {
       logging.info(`Uploaded image ${destFileName}`);
       file.makePublic(() => {
         cb(null, getPublicUrl(destFileName));
       });
     })
-    .on('error', (err) => {
+    .on('error', err => {
       logging.error('Could not upload image', err);
       cb(err);
     });
@@ -56,7 +58,7 @@ function downloadAndUploadImage (sourceUrl, destFileName, cb) {
 // Returns the public, anonymously accessable URL to a given Cloud Storage
 // object.
 // The object's ACL has to be set to public read.
-function getPublicUrl (filename) {
+function getPublicUrl(filename) {
   return `https://storage.googleapis.com/${CLOUD_BUCKET}/${filename}`;
 }
 
@@ -64,7 +66,7 @@ function getPublicUrl (filename) {
 // req.file is processed and will have two new properties:
 // * ``cloudStorageObject`` the object name in cloud storage.
 // * ``cloudStoragePublicUrl`` the public url to the object.
-function sendUploadToGCS (req, res, next) {
+function sendUploadToGCS(req, res, next) {
   if (!req.file) {
     return next();
   }
@@ -73,12 +75,12 @@ function sendUploadToGCS (req, res, next) {
   const file = bucket.file(gcsname);
   const stream = file.createWriteStream({
     metadata: {
-      contentType: req.file.mimetype
+      contentType: req.file.mimetype,
     },
-    resumable: false
+    resumable: false,
   });
 
-  stream.on('error', (err) => {
+  stream.on('error', err => {
     req.file.cloudStorageError = err;
     next(err);
   });
@@ -101,13 +103,13 @@ const Multer = require('multer');
 const multer = Multer({
   storage: Multer.MemoryStorage,
   limits: {
-    fileSize: 5 * 1024 * 1024 // no larger than 5mb
-  }
+    fileSize: 5 * 1024 * 1024, // no larger than 5mb
+  },
 });
 
 module.exports = {
   downloadAndUploadImage,
   getPublicUrl,
   sendUploadToGCS,
-  multer
+  multer,
 };
diff --git a/6-pubsub/lib/logging.js b/6-pubsub/lib/logging.js
index 94ddbc7ed..886af99dd 100644
--- a/6-pubsub/lib/logging.js
+++ b/6-pubsub/lib/logging.js
@@ -15,7 +15,8 @@
 
 const winston = require('winston');
 const expressWinston = require('express-winston');
-const StackdriverTransport = require('@google-cloud/logging-winston').LoggingWinston;
+const StackdriverTransport = require('@google-cloud/logging-winston')
+  .LoggingWinston;
 
 const colorize = process.env.NODE_ENV !== 'production';
 
@@ -25,11 +26,11 @@ const requestLogger = expressWinston.logger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: false,
-      colorize: colorize
-    })
+      colorize: colorize,
+    }),
   ],
   expressFormat: true,
-  meta: false
+  meta: false,
 });
 
 // Logger to capture any top-level errors and output json diagnostic info.
@@ -38,9 +39,9 @@ const errorLogger = expressWinston.errorLogger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: true,
-      colorize: colorize
-    })
-  ]
+      colorize: colorize,
+    }),
+  ],
 });
 
 module.exports = {
@@ -52,5 +53,5 @@ module.exports = {
   log: winston.log,
   verbose: winston.verbose,
   debug: winston.debug,
-  silly: winston.silly
+  silly: winston.silly,
 };
diff --git a/6-pubsub/lib/oauth2.js b/6-pubsub/lib/oauth2.js
index fa63e7270..f4ac3ec84 100644
--- a/6-pubsub/lib/oauth2.js
+++ b/6-pubsub/lib/oauth2.js
@@ -20,7 +20,7 @@ const config = require('../config');
 const passport = require('passport');
 const GoogleStrategy = require('passport-google-oauth20').Strategy;
 
-function extractProfile (profile) {
+function extractProfile(profile) {
   let imageUrl = '';
   if (profile.photos && profile.photos.length) {
     imageUrl = profile.photos[0].value;
@@ -28,7 +28,7 @@ function extractProfile (profile) {
   return {
     id: profile.id,
     displayName: profile.displayName,
-    image: imageUrl
+    image: imageUrl,
   };
 }
 
@@ -39,16 +39,21 @@ function extractProfile (profile) {
 // along with the user's profile. The function must invoke `cb` with a user
 // object, which will be set at `req.user` in route handlers after
 // authentication.
-passport.use(new GoogleStrategy({
-  clientID: config.get('OAUTH2_CLIENT_ID'),
-  clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
-  callbackURL: config.get('OAUTH2_CALLBACK'),
-  accessType: 'offline'
-}, (accessToken, refreshToken, profile, cb) => {
-  // Extract the minimal profile information we need from the profile object
-  // provided by Google
-  cb(null, extractProfile(profile));
-}));
+passport.use(
+  new GoogleStrategy(
+    {
+      clientID: config.get('OAUTH2_CLIENT_ID'),
+      clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
+      callbackURL: config.get('OAUTH2_CALLBACK'),
+      accessType: 'offline',
+    },
+    (accessToken, refreshToken, profile, cb) => {
+      // Extract the minimal profile information we need from the profile object
+      // provided by Google
+      cb(null, extractProfile(profile));
+    }
+  )
+);
 
 passport.serializeUser((user, cb) => {
   cb(null, user);
@@ -64,7 +69,7 @@ const router = express.Router();
 // Middleware that requires the user to be logged in. If the user is not logged
 // in, it will redirect the user to authorize the application and then return
 // them to the original URL they requested.
-function authRequired (req, res, next) {
+function authRequired(req, res, next) {
   if (!req.user) {
     req.session.oauth2return = req.originalUrl;
     return res.redirect('/auth/login');
@@ -74,10 +79,14 @@ function authRequired (req, res, next) {
 
 // Middleware that exposes the user's profile as well as login/logout URLs to
 // any templates. These are available as `profile`, `login`, and `logout`.
-function addTemplateVariables (req, res, next) {
+function addTemplateVariables(req, res, next) {
   res.locals.profile = req.user;
-  res.locals.login = `/auth/login?return=${encodeURIComponent(req.originalUrl)}`;
-  res.locals.logout = `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`;
+  res.locals.login = `/auth/login?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
+  res.locals.logout = `/auth/logout?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
   next();
 }
 // [END middleware]
@@ -102,7 +111,7 @@ router.get(
   },
 
   // Start OAuth 2 flow using Passport.js
-  passport.authenticate('google', { scope: ['email', 'profile'] })
+  passport.authenticate('google', {scope: ['email', 'profile']})
 );
 // [END authorize]
 
@@ -135,5 +144,5 @@ module.exports = {
   extractProfile: extractProfile,
   router: router,
   required: authRequired,
-  template: addTemplateVariables
+  template: addTemplateVariables,
 };
diff --git a/6-pubsub/package.json b/6-pubsub/package.json
index 3c041f70c..aea7f9842 100644
--- a/6-pubsub/package.json
+++ b/6-pubsub/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node ${SCRIPT:-app.js}",
     "test": "repo-tools test app && ava -t 30s --tap test/*.test.js",
diff --git a/6-pubsub/test/_api-tests.js b/6-pubsub/test/_api-tests.js
index e422353ca..31af46300 100644
--- a/6-pubsub/test/_api-tests.js
+++ b/6-pubsub/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       // .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/6-pubsub/test/_crud-tests.js b/6-pubsub/test/_crud-tests.js
index 01d76dc2d..179ba1072 100644
--- a/6-pubsub/test/_crud-tests.js
+++ b/6-pubsub/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .field(`title`, `my book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         id = idPart;
@@ -89,19 +89,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -113,12 +113,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -126,46 +126,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .field(`title`, `my other book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
+  test.serial.cb(`should show edit book form`, t => {
     const expected = /"title" value="my other book"/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -173,7 +173,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/6-pubsub/test/_test-config.js b/6-pubsub/test/_test-config.js
index bcf639e47..ed401ef46 100644
--- a/6-pubsub/test/_test-config.js
+++ b/6-pubsub/test/_test-config.js
@@ -29,6 +29,6 @@ module.exports = {
   project: process.env.GCLOUD_PROJECT,
   env: {
     PORT: PORT,
-    TOPIC_NAME: `book-process-queue-${TESTNAME}`
-  }
+    TOPIC_NAME: `book-process-queue-${TESTNAME}`,
+  },
 };
diff --git a/6-pubsub/test/_test-config.worker.js b/6-pubsub/test/_test-config.worker.js
index 2756835fe..90670f96f 100644
--- a/6-pubsub/test/_test-config.worker.js
+++ b/6-pubsub/test/_test-config.worker.js
@@ -28,10 +28,10 @@ module.exports = {
   msg: `This worker has processed`,
   port: PORT,
   env: {
-    TOPIC_NAME: `book-process-queue-${TESTNAME}`
+    TOPIC_NAME: `book-process-queue-${TESTNAME}`,
   },
   version: VERSION,
-  project: PROJECT_ID
+  project: PROJECT_ID,
 };
 
 if (process.env.E2E_TESTS) {
diff --git a/6-pubsub/test/app.test.js b/6-pubsub/test/app.test.js
index 0e03b050c..a33b28615 100644
--- a/6-pubsub/test/app.test.js
+++ b/6-pubsub/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/6-pubsub/test/background.test.js b/6-pubsub/test/background.test.js
index 86b3f29ca..ccb0446b7 100644
--- a/6-pubsub/test/background.test.js
+++ b/6-pubsub/test/background.test.js
@@ -20,49 +20,46 @@ const test = require(`ava`);
 let background;
 const mocks = {};
 
-test.beforeEach((t) => {
+test.beforeEach(t => {
   // Mock dependencies used by background.js
   mocks.config = {
     GCLOUD_PROJECT: process.env.GCLOUD_PROJECT,
     SUBSCRIPTION_NAME: `shared-worker-subscription`,
-    TOPIC_NAME: `book-process-queue`
+    TOPIC_NAME: `book-process-queue`,
   };
-  mocks.config.get = function (key) {
+  mocks.config.get = function(key) {
     return this[key];
   };
   mocks.subscription = {
-    on: sinon.stub()
+    on: sinon.stub(),
   };
   mocks.publisher = {
-    publish: sinon.stub().callsArgWith(1, null)
+    publish: sinon.stub().callsArgWith(1, null),
   };
   mocks.topic = {
     createSubscription: sinon.stub().callsArgWith(1, null, mocks.subscription),
-    publisher: sinon.stub().returns(mocks.publisher)
+    publisher: sinon.stub().returns(mocks.publisher),
   };
   mocks.pubsub = {
     createTopic: sinon.stub().callsArgWith(1, null, mocks.topic),
-    topic: sinon.stub().returns(mocks.topic)
+    topic: sinon.stub().returns(mocks.topic),
   };
   mocks.Pubsub = sinon.stub().returns(mocks.pubsub);
   mocks.logging = {
     info: sinon.stub(),
-    error: sinon.stub()
+    error: sinon.stub(),
   };
   // Load background.js with provided mocks
   background = proxyquire(`../lib/background`, {
     '@google-cloud/pubsub': mocks.Pubsub,
     '../config': mocks.config,
-    './logging': mocks.logging
+    './logging': mocks.logging,
   });
 
-  t.true(
-    mocks.Pubsub.calledOnce,
-    `Pubsub() should have been called once`
-  );
+  t.true(mocks.Pubsub.calledOnce, `Pubsub() should have been called once`);
 });
 
-test.serial(`should queue a book and log message`, (t) => {
+test.serial(`should queue a book and log message`, t => {
   // Setup
   const testBookId = 1;
 
@@ -94,10 +91,12 @@ test.serial(`should queue a book and log message`, (t) => {
   );
   t.deepEqual(
     mocks.publisher.publish.firstCall.args[0],
-    Buffer.from(JSON.stringify({
-      action: `processBook`,
-      bookId: testBookId
-    })),
+    Buffer.from(
+      JSON.stringify({
+        action: `processBook`,
+        bookId: testBookId,
+      })
+    ),
     `publisher.publish() should have been called with the right arguments`
   );
   t.true(
@@ -111,11 +110,11 @@ test.serial(`should queue a book and log message`, (t) => {
   );
 });
 
-test.serial(`should queue a book and log message even if topic exists`, (t) => {
+test.serial(`should queue a book and log message even if topic exists`, t => {
   // Setup
   const testBookId = 1;
   mocks.pubsub.createTopic = sinon.stub().callsArgWith(1, {
-    code: 6
+    code: 6,
   });
 
   // Run target functionality
@@ -150,10 +149,12 @@ test.serial(`should queue a book and log message even if topic exists`, (t) => {
   );
   t.deepEqual(
     mocks.publisher.publish.firstCall.args[0],
-    Buffer.from(JSON.stringify({
-      action: `processBook`,
-      bookId: testBookId
-    })),
+    Buffer.from(
+      JSON.stringify({
+        action: `processBook`,
+        bookId: testBookId,
+      })
+    ),
     `publisher.publish() should have been called with the right arguments`
   );
   t.true(
@@ -167,7 +168,7 @@ test.serial(`should queue a book and log message even if topic exists`, (t) => {
   );
 });
 
-test.serial(`should log error if cannot get topic`, (t) => {
+test.serial(`should log error if cannot get topic`, t => {
   // Setup
   const testBookId = 1;
   const testErrorMsg = `test error`;
@@ -212,7 +213,7 @@ test.serial(`should log error if cannot get topic`, (t) => {
   );
 });
 
-test.serial(`should log error if cannot publish message`, (t) => {
+test.serial(`should log error if cannot publish message`, t => {
   // Setup
   const testBookId = 1;
   const testErrorMsg = `test error`;
diff --git a/6-pubsub/test/cloudsql.test.js b/6-pubsub/test/cloudsql.test.js
index ff2ba5fd5..3ac8fbe5c 100644
--- a/6-pubsub/test/cloudsql.test.js
+++ b/6-pubsub/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/6-pubsub/test/datastore.test.js b/6-pubsub/test/datastore.test.js
index a4faa673b..6df5120c1 100644
--- a/6-pubsub/test/datastore.test.js
+++ b/6-pubsub/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/6-pubsub/test/oauth2.test.js b/6-pubsub/test/oauth2.test.js
index a384a0f3e..40fdcd558 100644
--- a/6-pubsub/test/oauth2.test.js
+++ b/6-pubsub/test/oauth2.test.js
@@ -32,26 +32,26 @@ const getPassportMock = () => {
     authenticate: sinon.stub().returns((req, res, next) => {
       req.session.oauth2return = `/another/path`;
       next();
-    })
+    }),
   };
 };
 
-test.cb(`should start authorization`, (t) => {
+test.cb(`should start authorization`, t => {
   const passportMock = getPassportMock();
-  passportMock.authenticate = sinon.stub().returns((req, res, next) => {
+  passportMock.authenticate = sinon.stub().returns((req, res) => {
     t.is(req.session.oauth2return, `/some/path`);
     res.redirect(`/auth/google/callback?code=foo`);
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/login?return=%2Fsome%2Fpath`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/auth\/google\/callback\?code=foo/);
       t.true(passportMock.initialize.calledOnce);
@@ -61,29 +61,28 @@ test.cb(`should start authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test.cb(`should finish authorization`, (t) => {
+test.cb(`should finish authorization`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
-    './lib/oauth2': oauth2
+    './lib/oauth2': oauth2,
   });
   request(app)
     .get(`/auth/google/callback?code=foo`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/another\/path/);
       t.true(passportMock.initialize.calledOnce);
@@ -93,22 +92,21 @@ test.cb(`should finish authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
       t.deepEqual(
         oauth2.extractProfile({
-          photos: [{ value: `image.jpg` }],
+          photos: [{value: `image.jpg`}],
           id: 1,
-          displayName: `Joe Developer`
+          displayName: `Joe Developer`,
         }),
         {
           id: 1,
           displayName: `Joe Developer`,
-          image: `image.jpg`
+          image: `image.jpg`,
         }
       );
       const serializeUser = passportMock.serializeUser.firstCall.args[0];
@@ -127,18 +125,18 @@ test.cb(`should finish authorization`, (t) => {
     .end(t.end);
 });
 
-test.cb(`should logout`, (t) => {
+test.cb(`should logout`, t => {
   const passportMock = getPassportMock();
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/logout`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \//);
       t.true(passportMock.initialize.calledOnce);
@@ -148,28 +146,27 @@ test.cb(`should logout`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test(`should require authentication`, (t) => {
+test(`should require authentication`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {},
-    session: {}
+    session: {},
   };
   const res = {
-    redirect: sinon.stub()
+    redirect: sinon.stub(),
   };
   const next = sinon.stub();
   oauth2.required(req, res, next);
@@ -183,30 +180,32 @@ test(`should require authentication`, (t) => {
   t.is(res.redirect.firstCall.args[0], `/auth/login`);
 });
 
-test(`should add template variables`, (t) => {
+test(`should add template variables`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {
       id: 1,
       displayName: `Joe Developer`,
-      image: `image.jpg`
-    }
+      image: `image.jpg`,
+    },
   };
   const res = {
-    locals: {}
+    locals: {},
   };
   const next = sinon.stub();
   oauth2.template(req, res, next);
   t.true(next.calledOnce);
   t.is(res.locals.profile, req.user);
   t.is(
-    res.locals.login, `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.login,
+    `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
   );
   t.is(
-    res.locals.logout, `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.logout,
+    `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
   );
 });
diff --git a/6-pubsub/test/worker.test.js b/6-pubsub/test/worker.test.js
index 6b8179f93..6d6e47e26 100644
--- a/6-pubsub/test/worker.test.js
+++ b/6-pubsub/test/worker.test.js
@@ -20,42 +20,44 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.serial.cb(`should return number of processed books`, (t) => {
-  utils.getRequest(testConfig)
+test.serial.cb(`should return number of processed books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(200)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /This worker has processed/);
     })
     .end(t.end);
 });
 
-test.serial.cb(`should do a health check`, (t) => {
-  utils.getRequest(testConfig)
+test.serial.cb(`should do a health check`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/_ah/health`)
     .expect(200)
-    .expect((response) => {
+    .expect(response => {
       t.is(response.text, `ok`);
     })
     .end(t.end);
 });
 
-test.serial.cb(`should process a book`, (t) => {
+test.serial.cb(`should process a book`, t => {
   const appConfig = require(`../config`);
   const loggingStub = {
     error: sinon.stub(),
     info: sinon.stub(),
-    warn: sinon.stub()
+    warn: sinon.stub(),
   };
   const stubs = {
     './lib/logging': loggingStub,
     '@google-cloud/trace-agent': {
       start: sinon.stub(),
-      '@noCallThru': true
+      '@noCallThru': true,
     },
     '@google-cloud/debug-agent': {
-      '@noCallThru': true
-    }
+      '@noCallThru': true,
+    },
   };
   stubs[`./books/model-${appConfig.get('DATA_BACKEND')}`] = {
     read: (bookId, cb) => {
@@ -63,12 +65,12 @@ test.serial.cb(`should process a book`, (t) => {
     },
     update: (bookId, book, queueBook, cb) => {
       cb();
-    }
+    },
   };
   const worker = proxyquire(path.join(__dirname, `../worker`), stubs).mocks;
   const processBook = worker.processBook;
 
-  processBook(1, (err, bookId) => {
+  processBook(1, err => {
     if (err) {
       return t.end(err);
     }
diff --git a/6-pubsub/worker.js b/6-pubsub/worker.js
index 31b78c7ea..374b8225a 100644
--- a/6-pubsub/worker.js
+++ b/6-pubsub/worker.js
@@ -57,8 +57,9 @@ app.post('/endpoint', jsonParser, (req, res) => {
     return res.sendStatus(400);
   }
 
-  const dataUtf8encoded = Buffer.from(req.body.message.data, 'base64')
-    .toString('utf8');
+  const dataUtf8encoded = Buffer.from(req.body.message.data, 'base64').toString(
+    'utf8'
+  );
   var content;
   try {
     content = JSON.parse(dataUtf8encoded);
@@ -90,32 +91,35 @@ if (module === require.main) {
 // Processes a book by reading its existing data, attempting to find
 // more information, and updating the database with the new information.
 // [START process]
-function processBook (bookId, callback) {
-  waterfall([
-    // Load the current data
-    (cb) => {
-      model.read(bookId, cb);
-    },
-    // Find the information from Google
-    findBookInfo,
-    // Save the updated data
-    (updated, cb) => {
-      model.update(updated.id, updated, false, cb);
-    }
-  ], (err) => {
-    if (err) {
-      logging.error('Error occurred', err);
+function processBook(bookId, callback) {
+  waterfall(
+    [
+      // Load the current data
+      cb => {
+        model.read(bookId, cb);
+      },
+      // Find the information from Google
+      findBookInfo,
+      // Save the updated data
+      (updated, cb) => {
+        model.update(updated.id, updated, false, cb);
+      },
+    ],
+    err => {
+      if (err) {
+        logging.error('Error occurred', err);
+        if (callback) {
+          callback(err);
+        }
+        return;
+      }
+      logging.info(`Updated book ${bookId}`);
+      bookCount += 1;
       if (callback) {
-        callback(err);
+        callback();
       }
-      return;
     }
-    logging.info(`Updated book ${bookId}`);
-    bookCount += 1;
-    if (callback) {
-      callback();
-    }
-  });
+  );
 }
 // [END process]
 
@@ -123,7 +127,7 @@ function processBook (bookId, callback) {
 // the book's data. Also uploads a cover image to Cloud Storage
 // if available.
 // [START find]
-function findBookInfo (book, cb) {
+function findBookInfo(book, cb) {
   queryBooksApi(book.title, (err, r) => {
     if (!err && !r.items) {
       err = 'Not found';
@@ -152,13 +156,12 @@ function findBookInfo (book, cb) {
       top.volumeInfo.imageLinks.smallThumbnail;
     const imageName = `${book.id}.jpg`;
 
-    images.downloadAndUploadImage(
-      imageUrl, imageName, (err, publicUrl) => {
-        if (!err) {
-          book.imageUrl = publicUrl;
-        }
-        cb(null, book);
-      });
+    images.downloadAndUploadImage(imageUrl, imageName, (err, publicUrl) => {
+      if (!err) {
+        book.imageUrl = publicUrl;
+      }
+      cb(null, book);
+    });
   });
 }
 // [END find]
@@ -166,9 +169,11 @@ function findBookInfo (book, cb) {
 // Calls out to the Google Books API to get additional
 // information about a given book.
 // [START query]
-function queryBooksApi (query, cb) {
+function queryBooksApi(query, cb) {
   request(
-    `https://www.googleapis.com/books/v1/volumes?country=US&q=${encodeURIComponent(query)}`,
+    `https://www.googleapis.com/books/v1/volumes?country=US&q=${encodeURIComponent(
+      query
+    )}`,
     (err, resp, body) => {
       if (err || resp.statusCode !== 200) {
         console.log(`Error: ${err}`);
@@ -186,7 +191,7 @@ function queryBooksApi (query, cb) {
 app.mocks = {
   processBook: processBook,
   findBookInfo: findBookInfo,
-  queryBooksApi: queryBooksApi
+  queryBooksApi: queryBooksApi,
 };
 
 // Proxyquire requires this *exact* line, hence the "app.mocks" above
diff --git a/7-gce/app.js b/7-gce/app.js
index e2f7c0669..9f7a96ba2 100644
--- a/7-gce/app.js
+++ b/7-gce/app.js
@@ -43,14 +43,14 @@ const sessionConfig = {
   resave: false,
   saveUninitialized: false,
   secret: config.get('SECRET'),
-  signed: true
+  signed: true,
 };
 
 // In production use the App Engine Memcache instance to store session data,
 // otherwise fallback to the default MemoryStore in development.
 if (config.get('NODE_ENV') === 'production' && config.get('MEMCACHE_URL')) {
   sessionConfig.store = new MemcachedStore({
-    hosts: [config.get('MEMCACHE_URL')]
+    hosts: [config.get('MEMCACHE_URL')],
   });
 }
 
@@ -87,7 +87,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   // If our routes specified a specific response, then send that. Otherwise,
   // send a generic message so as not to leak anything.
diff --git a/7-gce/books/api.js b/7-gce/books/api.js
index 9e9691fe5..750a4b37b 100644
--- a/7-gce/books/api.js
+++ b/7-gce/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/7-gce/books/crud.js b/7-gce/books/crud.js
index 214207e18..5d04ea808 100644
--- a/7-gce/books/crud.js
+++ b/7-gce/books/crud.js
@@ -17,7 +17,7 @@ const express = require('express');
 const images = require('../lib/images');
 const oauth2 = require('../lib/oauth2');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -46,7 +46,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -58,14 +58,14 @@ router.get('/mine', oauth2.required, (req, res, next) => {
     req.user.id,
     10,
     req.query.pageToken,
-    (err, entities, cursor, apiResponse) => {
+    (err, entities, cursor) => {
       if (err) {
         next(err);
         return;
       }
       res.render('books/list.pug', {
         books: entities,
-        nextPageToken: cursor
+        nextPageToken: cursor,
       });
     }
   );
@@ -79,7 +79,7 @@ router.get('/mine', oauth2.required, (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 
@@ -135,7 +135,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -180,7 +180,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -191,7 +191,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/7-gce/books/model-cloudsql.js b/7-gce/books/model-cloudsql.js
index 18d9d705a..2761b3c61 100644
--- a/7-gce/books/model-cloudsql.js
+++ b/7-gce/books/model-cloudsql.js
@@ -21,19 +21,23 @@ const background = require('../lib/background');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -45,7 +49,7 @@ function list (limit, token, cb) {
   );
 }
 
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
     'SELECT * FROM `books` WHERE `createdById` = ? LIMIT ? OFFSET ?',
@@ -57,10 +61,11 @@ function listBy (userId, limit, token, cb) {
       }
       const hasMore = results.length === limit ? token + results.length : false;
       cb(null, results, hasMore);
-    });
+    }
+  );
 }
 
-function create (data, queueBook, cb) {
+function create(data, queueBook, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -73,13 +78,15 @@ function create (data, queueBook, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -87,24 +94,24 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
-function update (id, data, queueBook, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      if (queueBook) {
-        background.queueBook(id);
-      }
-      read(id, cb);
-    });
+function update(id, data, queueBook, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    if (queueBook) {
+      background.queueBook(id);
+    }
+    read(id, cb);
+  });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -115,7 +122,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -124,7 +131,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql
-    database.\n This script will not modify any existing tables.\n`);
+    database.\n This script will not modify any existing tables.\n`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -134,10 +142,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -154,7 +167,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/7-gce/books/model-datastore.js b/7-gce/books/model-datastore.js
index 0693f9671..f191dc0db 100644
--- a/7-gce/books/model-datastore.js
+++ b/7-gce/books/model-datastore.js
@@ -18,7 +18,7 @@ const config = require('../config');
 const background = require('../lib/background');
 
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 
@@ -38,7 +38,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -66,17 +66,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   let results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -86,8 +86,9 @@ function toDatastore (obj, nonIndexed) {
 // The ``limit`` argument determines the maximum amount of results to
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -97,15 +98,19 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
 
 // Similar to ``list``, but only lists the books created by the specified
 // user.
-function listBy (userId, limit, token, cb) {
-  const q = ds.createQuery([kind])
+function listBy(userId, limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .filter('createdById', '=', userId)
     .limit(limit)
     .start(token);
@@ -115,7 +120,10 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -123,7 +131,7 @@ function listBy (userId, limit, token, cb) {
 // Creates a new book or updates an existing book with new data. The provided
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
-function update (id, data, queueBook, cb) {
+function update(id, data, queueBook, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -133,32 +141,29 @@ function update (id, data, queueBook, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      data.id = entity.key.id;
-      if (queueBook) {
-        background.queueBook(data.id);
-      }
-      cb(null, data);
+  ds.save(entity, err => {
+    if (err) {
+      cb(err);
+      return;
     }
-  );
+    data.id = entity.key.id;
+    if (queueBook) {
+      background.queueBook(data.id);
+    }
+    cb(null, data);
+  });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -169,7 +174,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -182,5 +187,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/7-gce/books/model-mongodb.js b/7-gce/books/model-mongodb.js
index 7e9accdb6..2061ac5b8 100644
--- a/7-gce/books/model-mongodb.js
+++ b/7-gce/books/model-mongodb.js
@@ -20,7 +20,7 @@ const background = require('../lib/background');
 
 let collection;
 
-function fromMongo (item) {
+function fromMongo(item) {
   if (Array.isArray(item) && item.length) {
     item = item[0];
   }
@@ -29,30 +29,33 @@ function fromMongo (item) {
   return item;
 }
 
-function toMongo (item) {
+function toMongo(item) {
   delete item.id;
   return item;
 }
 
-function getCollection (cb) {
+function getCollection(cb) {
   if (collection) {
     setImmediate(() => {
       cb(null, collection);
     });
     return;
   }
-  MongoClient.connect(config.get('MONGO_URL'), (err, client) => {
-    if (err) {
-      cb(err);
-      return;
+  MongoClient.connect(
+    config.get('MONGO_URL'),
+    (err, client) => {
+      if (err) {
+        cb(err);
+        return;
+      }
+      const db = client.db(config.get('MONGO_DB_NAME'));
+      collection = db.collection(config.get('MONGO_COLLECTION'));
+      cb(null, collection);
     }
-    const db = client.db(config.get('MONGO_DB_NAME'));
-    collection = db.collection(config.get('MONGO_COLLECTION'));
-    cb(null, collection);
-  });
+  );
 }
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   if (isNaN(token)) {
     cb(new Error('invalid token'));
@@ -63,7 +66,8 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    collection.find({})
+    collection
+      .find({})
       .skip(token)
       .limit(limit)
       .toArray((err, results) => {
@@ -78,7 +82,7 @@ function list (limit, token, cb) {
   });
 }
 
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   if (isNaN(token)) {
     cb(new Error('invalid token'));
@@ -89,7 +93,8 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    collection.find({ createdById: userId })
+    collection
+      .find({createdById: userId})
       .skip(token)
       .limit(limit)
       .toArray((err, results) => {
@@ -104,7 +109,7 @@ function listBy (userId, limit, token, cb) {
   });
 }
 
-function create (data, queueBook, cb) {
+function create(data, queueBook, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
@@ -124,42 +129,45 @@ function create (data, queueBook, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
       return;
     }
-    collection.findOne({
-      _id: new ObjectID(id)
-    }, (err, result) => {
-      if (!err && !result) {
-        err = {
-          code: 404,
-          message: 'Not found'
-        };
-        return;
-      }
-      if (err) {
-        cb(err);
-        return;
+    collection.findOne(
+      {
+        _id: new ObjectID(id),
+      },
+      (err, result) => {
+        if (!err && !result) {
+          err = {
+            code: 404,
+            message: 'Not found',
+          };
+          return;
+        }
+        if (err) {
+          cb(err);
+          return;
+        }
+        cb(null, fromMongo(result));
       }
-      cb(null, fromMongo(result));
-    });
+    );
   });
 }
 
-function update (id, data, queueBook, cb) {
+function update(id, data, queueBook, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
       return;
     }
     collection.update(
-      { _id: new ObjectID(id) },
-      { '$set': toMongo(data) },
-      { w: 1 },
-      (err) => {
+      {_id: new ObjectID(id)},
+      {$set: toMongo(data)},
+      {w: 1},
+      err => {
         if (err) {
           cb(err);
           return;
@@ -173,15 +181,18 @@ function update (id, data, queueBook, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
       return;
     }
-    collection.remove({
-      _id: new ObjectID(id)
-    }, cb);
+    collection.remove(
+      {
+        _id: new ObjectID(id),
+      },
+      cb
+    );
   });
 }
 
@@ -191,5 +202,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/7-gce/config.js b/7-gce/config.js
index 6fcc654f6..3f46a309f 100644
--- a/7-gce/config.js
+++ b/7-gce/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -40,10 +40,10 @@ nconf
     'PORT',
     'SECRET',
     'SUBSCRIPTION_NAME',
-    'TOPIC_NAME'
+    'TOPIC_NAME',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // Typically you will create a bucket with the same name as your project ID.
@@ -79,7 +79,7 @@ nconf
     SECRET: 'keyboardcat',
 
     SUBSCRIPTION_NAME: 'shared-worker-subscription',
-    TOPIC_NAME: 'book-process-queue'
+    TOPIC_NAME: 'book-process-queue',
   });
 
 // Check for required settings
@@ -100,8 +100,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   checkConfig('MONGO_DB_NAME');
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/7-gce/lib/background.js b/7-gce/lib/background.js
index ff3f55ee6..84a8fc1c9 100644
--- a/7-gce/lib/background.js
+++ b/7-gce/lib/background.js
@@ -21,7 +21,7 @@ const topicName = config.get('TOPIC_NAME');
 const subscriptionName = config.get('SUBSCRIPTION_NAME');
 
 const pubsub = new Pubsub({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 
 // This configuration will automatically create the topic if
@@ -29,7 +29,7 @@ const pubsub = new Pubsub({
 // that a least one subscription exists on the topic before
 // publishing anything to it as topics without subscribers
 // will essentially drop any messages.
-function getTopic (cb) {
+function getTopic(cb) {
   pubsub.createTopic(topicName, (err, topic) => {
     // topic already exists.
     if (err && err.code === 6) {
@@ -44,16 +44,16 @@ function getTopic (cb) {
 // When more than one worker is running they will all share the same
 // subscription, which means that pub/sub will evenly distribute messages
 // to each worker.
-function subscribe (cb) {
+function subscribe(cb) {
   let subscription;
 
   // Event handlers
-  function handleMessage (message) {
+  function handleMessage(message) {
     const data = JSON.parse(message.data);
     message.ack();
     cb(null, data);
   }
-  function handleError (err) {
+  function handleError(err) {
     logging.error(err);
   }
 
@@ -75,7 +75,9 @@ function subscribe (cb) {
       subscription.on('message', handleMessage);
       subscription.on('error', handleError);
 
-      logging.info(`Listening to ${topicName} with subscription ${subscriptionName}`);
+      logging.info(
+        `Listening to ${topicName} with subscription ${subscriptionName}`
+      );
     });
   });
 
@@ -91,7 +93,7 @@ function subscribe (cb) {
 }
 
 // Adds a book to the queue to be processed by the worker.
-function queueBook (bookId) {
+function queueBook(bookId) {
   getTopic((err, topic) => {
     if (err) {
       logging.error('Error occurred while getting pubsub topic', err);
@@ -100,11 +102,11 @@ function queueBook (bookId) {
 
     const data = {
       action: 'processBook',
-      bookId: bookId
+      bookId: bookId,
     };
 
     const publisher = topic.publisher();
-    publisher.publish(Buffer.from(JSON.stringify(data)), (err) => {
+    publisher.publish(Buffer.from(JSON.stringify(data)), err => {
       if (err) {
         logging.error('Error occurred while queuing background task', err);
       } else {
@@ -116,5 +118,5 @@ function queueBook (bookId) {
 
 module.exports = {
   subscribe,
-  queueBook
+  queueBook,
 };
diff --git a/7-gce/lib/images.js b/7-gce/lib/images.js
index 1073c3b90..45ef1cc02 100644
--- a/7-gce/lib/images.js
+++ b/7-gce/lib/images.js
@@ -21,18 +21,18 @@ const logging = require('./logging');
 const CLOUD_BUCKET = config.get('CLOUD_BUCKET');
 
 const storage = Storage({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const bucket = storage.bucket(CLOUD_BUCKET);
 
 // Downloads a given image (by URL) and then uploads it to
 // Google Cloud Storage. Provides the publicly accessable URL to the callback.
-function downloadAndUploadImage (sourceUrl, destFileName, cb) {
+function downloadAndUploadImage(sourceUrl, destFileName, cb) {
   const file = bucket.file(destFileName);
 
   request
     .get(sourceUrl)
-    .on('error', (err) => {
+    .on('error', err => {
       logging.warn(`Could not fetch image ${sourceUrl}`, err);
       cb(err);
     })
@@ -43,7 +43,7 @@ function downloadAndUploadImage (sourceUrl, destFileName, cb) {
         cb(null, getPublicUrl(destFileName));
       });
     })
-    .on('error', (err) => {
+    .on('error', err => {
       logging.error('Could not upload image', err);
       cb(err);
     });
@@ -52,7 +52,7 @@ function downloadAndUploadImage (sourceUrl, destFileName, cb) {
 // Returns the public, anonymously accessable URL to a given Cloud Storage
 // object.
 // The object's ACL has to be set to public read.
-function getPublicUrl (filename) {
+function getPublicUrl(filename) {
   return `https://storage.googleapis.com/${CLOUD_BUCKET}/${filename}`;
 }
 
@@ -60,7 +60,7 @@ function getPublicUrl (filename) {
 // req.file is processed and will have two new properties:
 // * ``cloudStorageObject`` the object name in cloud storage.
 // * ``cloudStoragePublicUrl`` the public url to the object.
-function sendUploadToGCS (req, res, next) {
+function sendUploadToGCS(req, res, next) {
   if (!req.file) {
     return next();
   }
@@ -69,11 +69,11 @@ function sendUploadToGCS (req, res, next) {
   const file = bucket.file(gcsname);
   const stream = file.createWriteStream({
     metadata: {
-      contentType: req.file.mimetype
-    }
+      contentType: req.file.mimetype,
+    },
   });
 
-  stream.on('error', (err) => {
+  stream.on('error', err => {
     req.file.cloudStorageError = err;
     next(err);
   });
@@ -96,13 +96,13 @@ const Multer = require('multer');
 const multer = Multer({
   storage: Multer.MemoryStorage,
   limits: {
-    fileSize: 5 * 1024 * 1024 // no larger than 5mb
-  }
+    fileSize: 5 * 1024 * 1024, // no larger than 5mb
+  },
 });
 
 module.exports = {
   downloadAndUploadImage,
   getPublicUrl,
   sendUploadToGCS,
-  multer
+  multer,
 };
diff --git a/7-gce/lib/logging.js b/7-gce/lib/logging.js
index 94ddbc7ed..886af99dd 100644
--- a/7-gce/lib/logging.js
+++ b/7-gce/lib/logging.js
@@ -15,7 +15,8 @@
 
 const winston = require('winston');
 const expressWinston = require('express-winston');
-const StackdriverTransport = require('@google-cloud/logging-winston').LoggingWinston;
+const StackdriverTransport = require('@google-cloud/logging-winston')
+  .LoggingWinston;
 
 const colorize = process.env.NODE_ENV !== 'production';
 
@@ -25,11 +26,11 @@ const requestLogger = expressWinston.logger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: false,
-      colorize: colorize
-    })
+      colorize: colorize,
+    }),
   ],
   expressFormat: true,
-  meta: false
+  meta: false,
 });
 
 // Logger to capture any top-level errors and output json diagnostic info.
@@ -38,9 +39,9 @@ const errorLogger = expressWinston.errorLogger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: true,
-      colorize: colorize
-    })
-  ]
+      colorize: colorize,
+    }),
+  ],
 });
 
 module.exports = {
@@ -52,5 +53,5 @@ module.exports = {
   log: winston.log,
   verbose: winston.verbose,
   debug: winston.debug,
-  silly: winston.silly
+  silly: winston.silly,
 };
diff --git a/7-gce/lib/oauth2.js b/7-gce/lib/oauth2.js
index fa63e7270..f4ac3ec84 100644
--- a/7-gce/lib/oauth2.js
+++ b/7-gce/lib/oauth2.js
@@ -20,7 +20,7 @@ const config = require('../config');
 const passport = require('passport');
 const GoogleStrategy = require('passport-google-oauth20').Strategy;
 
-function extractProfile (profile) {
+function extractProfile(profile) {
   let imageUrl = '';
   if (profile.photos && profile.photos.length) {
     imageUrl = profile.photos[0].value;
@@ -28,7 +28,7 @@ function extractProfile (profile) {
   return {
     id: profile.id,
     displayName: profile.displayName,
-    image: imageUrl
+    image: imageUrl,
   };
 }
 
@@ -39,16 +39,21 @@ function extractProfile (profile) {
 // along with the user's profile. The function must invoke `cb` with a user
 // object, which will be set at `req.user` in route handlers after
 // authentication.
-passport.use(new GoogleStrategy({
-  clientID: config.get('OAUTH2_CLIENT_ID'),
-  clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
-  callbackURL: config.get('OAUTH2_CALLBACK'),
-  accessType: 'offline'
-}, (accessToken, refreshToken, profile, cb) => {
-  // Extract the minimal profile information we need from the profile object
-  // provided by Google
-  cb(null, extractProfile(profile));
-}));
+passport.use(
+  new GoogleStrategy(
+    {
+      clientID: config.get('OAUTH2_CLIENT_ID'),
+      clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
+      callbackURL: config.get('OAUTH2_CALLBACK'),
+      accessType: 'offline',
+    },
+    (accessToken, refreshToken, profile, cb) => {
+      // Extract the minimal profile information we need from the profile object
+      // provided by Google
+      cb(null, extractProfile(profile));
+    }
+  )
+);
 
 passport.serializeUser((user, cb) => {
   cb(null, user);
@@ -64,7 +69,7 @@ const router = express.Router();
 // Middleware that requires the user to be logged in. If the user is not logged
 // in, it will redirect the user to authorize the application and then return
 // them to the original URL they requested.
-function authRequired (req, res, next) {
+function authRequired(req, res, next) {
   if (!req.user) {
     req.session.oauth2return = req.originalUrl;
     return res.redirect('/auth/login');
@@ -74,10 +79,14 @@ function authRequired (req, res, next) {
 
 // Middleware that exposes the user's profile as well as login/logout URLs to
 // any templates. These are available as `profile`, `login`, and `logout`.
-function addTemplateVariables (req, res, next) {
+function addTemplateVariables(req, res, next) {
   res.locals.profile = req.user;
-  res.locals.login = `/auth/login?return=${encodeURIComponent(req.originalUrl)}`;
-  res.locals.logout = `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`;
+  res.locals.login = `/auth/login?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
+  res.locals.logout = `/auth/logout?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
   next();
 }
 // [END middleware]
@@ -102,7 +111,7 @@ router.get(
   },
 
   // Start OAuth 2 flow using Passport.js
-  passport.authenticate('google', { scope: ['email', 'profile'] })
+  passport.authenticate('google', {scope: ['email', 'profile']})
 );
 // [END authorize]
 
@@ -135,5 +144,5 @@ module.exports = {
   extractProfile: extractProfile,
   router: router,
   required: authRequired,
-  template: addTemplateVariables
+  template: addTemplateVariables,
 };
diff --git a/7-gce/package.json b/7-gce/package.json
index 2fca70a66..9346fbf45 100644
--- a/7-gce/package.json
+++ b/7-gce/package.json
@@ -12,24 +12,6 @@
     "init-cloudsql": "node books/model-cloudsql.js"
   },
   "author": "Google Inc.",
-  "contributors": [
-    {
-      "name": "Jon Wayne Parrott",
-      "email": "jonwayne@google.com"
-    },
-    {
-      "name": "Jonathan Simon",
-      "email": "jbsimon@google.com"
-    },
-    {
-      "name": "Jason Dobry",
-      "email": "jdobry@google.com"
-    },
-    {
-      "name": "Ace Nassri",
-      "email": "anassri@google.com"
-    }
-  ],
   "cloud-repo-tools": {
     "requiresKeyFile": true,
     "requiresProjectId": true,
@@ -43,16 +25,6 @@
     }
   },
   "license": "Apache-2.0",
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
   "dependencies": {
     "@google-cloud/datastore": "1.4.2",
     "@google-cloud/debug-agent": "3.0.0",
diff --git a/7-gce/test/_api-tests.js b/7-gce/test/_api-tests.js
index e422353ca..31af46300 100644
--- a/7-gce/test/_api-tests.js
+++ b/7-gce/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       // .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/7-gce/test/_crud-tests.js b/7-gce/test/_crud-tests.js
index 7c0293b84..f1265ca92 100644
--- a/7-gce/test/_crud-tests.js
+++ b/7-gce/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .field(`title`, `my book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         if (DATA_BACKEND !== `mongodb`) {
@@ -93,19 +93,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -117,12 +117,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -130,46 +130,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .field(`title`, `my other book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
+  test.serial.cb(`should show edit book form`, t => {
     const expected = /"title" value="my other book"/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -177,7 +177,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/7-gce/test/_test-config.js b/7-gce/test/_test-config.js
index e9422563c..d12e60d8a 100644
--- a/7-gce/test/_test-config.js
+++ b/7-gce/test/_test-config.js
@@ -30,6 +30,6 @@ module.exports = {
   env: {
     PORT: PORT,
     SUBSCRIPTION_NAME: `shared-worker-subscription-${TESTNAME}`,
-    TOPIC_NAME: `book-process-queue-${TESTNAME}`
-  }
+    TOPIC_NAME: `book-process-queue-${TESTNAME}`,
+  },
 };
diff --git a/7-gce/test/_test-config.worker.js b/7-gce/test/_test-config.worker.js
index 3bc90bb70..712a256a3 100644
--- a/7-gce/test/_test-config.worker.js
+++ b/7-gce/test/_test-config.worker.js
@@ -29,10 +29,10 @@ module.exports = {
   port: PORT,
   env: {
     SUBSCRIPTION_NAME: `shared-worker-subscription-${TESTNAME}`,
-    TOPIC_NAME: `book-process-queue-${TESTNAME}`
+    TOPIC_NAME: `book-process-queue-${TESTNAME}`,
   },
   version: VERSION,
-  project: PROJECT_ID
+  project: PROJECT_ID,
 };
 
 if (process.env.E2E_TESTS) {
diff --git a/7-gce/test/app.test.js b/7-gce/test/app.test.js
index 06ae909c7..120d80f40 100644
--- a/7-gce/test/app.test.js
+++ b/7-gce/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/7-gce/test/background.test.js b/7-gce/test/background.test.js
index 40f2df205..a0eb9433e 100644
--- a/7-gce/test/background.test.js
+++ b/7-gce/test/background.test.js
@@ -20,51 +20,48 @@ const test = require(`ava`);
 let background;
 const mocks = {};
 
-test.beforeEach((t) => {
+test.beforeEach(t => {
   // Mock dependencies used by background.js
   mocks.config = {
     GCLOUD_PROJECT: process.env.GCLOUD_PROJECT,
     SUBSCRIPTION_NAME: `shared-worker-subscription`,
-    TOPIC_NAME: `book-process-queue`
+    TOPIC_NAME: `book-process-queue`,
   };
-  mocks.config.get = function (key) {
+  mocks.config.get = function(key) {
     return this[key];
   };
   mocks.subscription = {
-    on: sinon.stub()
+    on: sinon.stub(),
   };
   mocks.publisher = {
-    publish: sinon.stub().callsArg(1, null)
+    publish: sinon.stub().callsArg(1, null),
   };
   mocks.topic = {
     createSubscription: sinon.stub().callsArgWith(1, null, mocks.subscription),
-    publisher: sinon.stub().returns(mocks.publisher)
+    publisher: sinon.stub().returns(mocks.publisher),
   };
   mocks.pubsub = {
     createTopic: sinon.stub().callsArgWith(1, null, mocks.topic),
-    topic: sinon.stub().returns(mocks.topic)
+    topic: sinon.stub().returns(mocks.topic),
   };
   mocks.Pubsub = sinon.stub().returns(mocks.pubsub);
   mocks.logging = {
     info: sinon.stub(),
-    error: sinon.stub()
+    error: sinon.stub(),
   };
   // Load background.js with provided mocks
   background = proxyquire(`../lib/background`, {
     '@google-cloud/pubsub': mocks.Pubsub,
     '../config': mocks.config,
-    './logging': mocks.logging
+    './logging': mocks.logging,
   });
 
-  t.true(
-    mocks.Pubsub.calledOnce,
-    `Pubsub() should have been called once`
-  );
+  t.true(mocks.Pubsub.calledOnce, `Pubsub() should have been called once`);
 });
 
-test.serial.cb(`should subscribe and log message`, (t) => {
+test.serial.cb(`should subscribe and log message`, t => {
   // Setup
-  const testMessage = { test: `foo` };
+  const testMessage = {test: `foo`};
 
   // Run target functionality
   background.subscribe((err, message) => {
@@ -123,18 +120,18 @@ test.serial.cb(`should subscribe and log message`, (t) => {
   setTimeout(() => {
     mocks.subscription.on.firstCall.args[1]({
       data: JSON.stringify(testMessage),
-      ack: sinon.stub()
+      ack: sinon.stub(),
     });
   }, 10);
 });
 
-test.serial.cb(`should return topic error, if any`, (t) => {
+test.serial.cb(`should return topic error, if any`, t => {
   // Setup
   const testErrorMsg = `test error`;
   mocks.pubsub.createTopic = sinon.stub().callsArgWith(1, testErrorMsg);
 
   // Run target functionality
-  background.subscribe((data) => {
+  background.subscribe(data => {
     // Assertions
     t.true(
       mocks.pubsub.createTopic.calledOnce,
@@ -165,13 +162,13 @@ test.serial.cb(`should return topic error, if any`, (t) => {
   });
 });
 
-test.serial.cb(`should return subscription error, if any`, (t) => {
+test.serial.cb(`should return subscription error, if any`, t => {
   // Setup
   const testErrorMsg = `test error`;
   mocks.topic.createSubscription = sinon.stub().callsArgWith(1, testErrorMsg);
 
   // Run target functionality
-  background.subscribe((data) => {
+  background.subscribe(data => {
     // Assertions
     t.true(
       mocks.pubsub.createTopic.calledOnce,
@@ -211,7 +208,7 @@ test.serial.cb(`should return subscription error, if any`, (t) => {
   });
 });
 
-test.serial(`should queue a book and log message`, (t) => {
+test.serial(`should queue a book and log message`, t => {
   // Setup
   const testBookId = 1;
 
@@ -243,10 +240,12 @@ test.serial(`should queue a book and log message`, (t) => {
   );
   t.deepEqual(
     mocks.publisher.publish.firstCall.args[0],
-    Buffer.from(JSON.stringify({
-      action: `processBook`,
-      bookId: testBookId
-    })),
+    Buffer.from(
+      JSON.stringify({
+        action: `processBook`,
+        bookId: testBookId,
+      })
+    ),
     `publisher.publish() should have been called with the right arguments`
   );
   t.true(
@@ -260,11 +259,11 @@ test.serial(`should queue a book and log message`, (t) => {
   );
 });
 
-test.serial(`should queue a book and log message even if topic exists`, (t) => {
+test.serial(`should queue a book and log message even if topic exists`, t => {
   // Setup
   const testBookId = 1;
   mocks.pubsub.createTopic = sinon.stub().callsArgWith(1, {
-    code: 6
+    code: 6,
   });
 
   // Run target functionality
@@ -299,10 +298,12 @@ test.serial(`should queue a book and log message even if topic exists`, (t) => {
   );
   t.deepEqual(
     mocks.publisher.publish.firstCall.args[0],
-    Buffer.from(JSON.stringify({
-      action: `processBook`,
-      bookId: testBookId
-    })),
+    Buffer.from(
+      JSON.stringify({
+        action: `processBook`,
+        bookId: testBookId,
+      })
+    ),
     `publisher.publish() should have been called with the right arguments`
   );
   t.true(
@@ -316,7 +317,7 @@ test.serial(`should queue a book and log message even if topic exists`, (t) => {
   );
 });
 
-test.serial(`should log error if cannot get topic`, (t) => {
+test.serial(`should log error if cannot get topic`, t => {
   // Setup
   const testBookId = 1;
   const testErrorMsg = `test error`;
@@ -356,7 +357,7 @@ test.serial(`should log error if cannot get topic`, (t) => {
   );
 });
 
-test.serial(`should log error if cannot publish message`, (t) => {
+test.serial(`should log error if cannot publish message`, t => {
   // Setup
   const testBookId = 1;
   const testErrorMsg = `test error`;
diff --git a/7-gce/test/cloudsql.test.js b/7-gce/test/cloudsql.test.js
index ff2ba5fd5..3ac8fbe5c 100644
--- a/7-gce/test/cloudsql.test.js
+++ b/7-gce/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/7-gce/test/datastore.test.js b/7-gce/test/datastore.test.js
index a4faa673b..6df5120c1 100644
--- a/7-gce/test/datastore.test.js
+++ b/7-gce/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/7-gce/test/mongodb.test.js b/7-gce/test/mongodb.test.js
index c7b49311b..3a9bbf47d 100644
--- a/7-gce/test/mongodb.test.js
+++ b/7-gce/test/mongodb.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `mongodb` || process.env.TEST_MONGODB) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `mongodb` ||
+  process.env.TEST_MONGODB
+) {
   require(`./_api-tests`)(`mongodb`);
   require(`./_crud-tests`)(`mongodb`);
 } else {
-  test(`Skipping MongoDB tests...`, (t) => t.pass());
+  test(`Skipping MongoDB tests...`, t => t.pass());
 }
diff --git a/7-gce/test/oauth2.test.js b/7-gce/test/oauth2.test.js
index a384a0f3e..40fdcd558 100644
--- a/7-gce/test/oauth2.test.js
+++ b/7-gce/test/oauth2.test.js
@@ -32,26 +32,26 @@ const getPassportMock = () => {
     authenticate: sinon.stub().returns((req, res, next) => {
       req.session.oauth2return = `/another/path`;
       next();
-    })
+    }),
   };
 };
 
-test.cb(`should start authorization`, (t) => {
+test.cb(`should start authorization`, t => {
   const passportMock = getPassportMock();
-  passportMock.authenticate = sinon.stub().returns((req, res, next) => {
+  passportMock.authenticate = sinon.stub().returns((req, res) => {
     t.is(req.session.oauth2return, `/some/path`);
     res.redirect(`/auth/google/callback?code=foo`);
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/login?return=%2Fsome%2Fpath`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/auth\/google\/callback\?code=foo/);
       t.true(passportMock.initialize.calledOnce);
@@ -61,29 +61,28 @@ test.cb(`should start authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test.cb(`should finish authorization`, (t) => {
+test.cb(`should finish authorization`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
-    './lib/oauth2': oauth2
+    './lib/oauth2': oauth2,
   });
   request(app)
     .get(`/auth/google/callback?code=foo`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/another\/path/);
       t.true(passportMock.initialize.calledOnce);
@@ -93,22 +92,21 @@ test.cb(`should finish authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
       t.deepEqual(
         oauth2.extractProfile({
-          photos: [{ value: `image.jpg` }],
+          photos: [{value: `image.jpg`}],
           id: 1,
-          displayName: `Joe Developer`
+          displayName: `Joe Developer`,
         }),
         {
           id: 1,
           displayName: `Joe Developer`,
-          image: `image.jpg`
+          image: `image.jpg`,
         }
       );
       const serializeUser = passportMock.serializeUser.firstCall.args[0];
@@ -127,18 +125,18 @@ test.cb(`should finish authorization`, (t) => {
     .end(t.end);
 });
 
-test.cb(`should logout`, (t) => {
+test.cb(`should logout`, t => {
   const passportMock = getPassportMock();
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/logout`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \//);
       t.true(passportMock.initialize.calledOnce);
@@ -148,28 +146,27 @@ test.cb(`should logout`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test(`should require authentication`, (t) => {
+test(`should require authentication`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {},
-    session: {}
+    session: {},
   };
   const res = {
-    redirect: sinon.stub()
+    redirect: sinon.stub(),
   };
   const next = sinon.stub();
   oauth2.required(req, res, next);
@@ -183,30 +180,32 @@ test(`should require authentication`, (t) => {
   t.is(res.redirect.firstCall.args[0], `/auth/login`);
 });
 
-test(`should add template variables`, (t) => {
+test(`should add template variables`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {
       id: 1,
       displayName: `Joe Developer`,
-      image: `image.jpg`
-    }
+      image: `image.jpg`,
+    },
   };
   const res = {
-    locals: {}
+    locals: {},
   };
   const next = sinon.stub();
   oauth2.template(req, res, next);
   t.true(next.calledOnce);
   t.is(res.locals.profile, req.user);
   t.is(
-    res.locals.login, `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.login,
+    `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
   );
   t.is(
-    res.locals.logout, `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.logout,
+    `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
   );
 });
diff --git a/7-gce/test/worker.test.js b/7-gce/test/worker.test.js
index 6b8179f93..6d6e47e26 100644
--- a/7-gce/test/worker.test.js
+++ b/7-gce/test/worker.test.js
@@ -20,42 +20,44 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.serial.cb(`should return number of processed books`, (t) => {
-  utils.getRequest(testConfig)
+test.serial.cb(`should return number of processed books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(200)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /This worker has processed/);
     })
     .end(t.end);
 });
 
-test.serial.cb(`should do a health check`, (t) => {
-  utils.getRequest(testConfig)
+test.serial.cb(`should do a health check`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/_ah/health`)
     .expect(200)
-    .expect((response) => {
+    .expect(response => {
       t.is(response.text, `ok`);
     })
     .end(t.end);
 });
 
-test.serial.cb(`should process a book`, (t) => {
+test.serial.cb(`should process a book`, t => {
   const appConfig = require(`../config`);
   const loggingStub = {
     error: sinon.stub(),
     info: sinon.stub(),
-    warn: sinon.stub()
+    warn: sinon.stub(),
   };
   const stubs = {
     './lib/logging': loggingStub,
     '@google-cloud/trace-agent': {
       start: sinon.stub(),
-      '@noCallThru': true
+      '@noCallThru': true,
     },
     '@google-cloud/debug-agent': {
-      '@noCallThru': true
-    }
+      '@noCallThru': true,
+    },
   };
   stubs[`./books/model-${appConfig.get('DATA_BACKEND')}`] = {
     read: (bookId, cb) => {
@@ -63,12 +65,12 @@ test.serial.cb(`should process a book`, (t) => {
     },
     update: (bookId, book, queueBook, cb) => {
       cb();
-    }
+    },
   };
   const worker = proxyquire(path.join(__dirname, `../worker`), stubs).mocks;
   const processBook = worker.processBook;
 
-  processBook(1, (err, bookId) => {
+  processBook(1, err => {
     if (err) {
       return t.end(err);
     }
diff --git a/7-gce/worker.js b/7-gce/worker.js
index e513a9912..995992043 100644
--- a/7-gce/worker.js
+++ b/7-gce/worker.js
@@ -49,7 +49,7 @@ app.get('/', (req, res) => {
 
 app.use(logging.errorLogger);
 
-function subscribe () {
+function subscribe() {
   // Subscribe to Cloud Pub/Sub and receive messages to process books.
   // The subscription will continue to listen for messages until the process
   // is killed.
@@ -77,38 +77,41 @@ if (module === require.main) {
 
 // Processes a book by reading its existing data, attempting to find
 // more information, and updating the database with the new information.
-function processBook (bookId, callback) {
-  waterfall([
-    // Load the current data
-    (cb) => {
-      model.read(bookId, cb);
-    },
-    // Find the information from Google
-    findBookInfo,
-    // Save the updated data
-    (updated, cb) => {
-      model.update(updated.id, updated, false, cb);
-    }
-  ], (err) => {
-    if (err) {
-      logging.error('Error occurred', err);
+function processBook(bookId, callback) {
+  waterfall(
+    [
+      // Load the current data
+      cb => {
+        model.read(bookId, cb);
+      },
+      // Find the information from Google
+      findBookInfo,
+      // Save the updated data
+      (updated, cb) => {
+        model.update(updated.id, updated, false, cb);
+      },
+    ],
+    err => {
+      if (err) {
+        logging.error('Error occurred', err);
+        if (callback) {
+          callback(err);
+        }
+        return;
+      }
+      logging.info(`Updated book ${bookId}`);
+      bookCount += 1;
       if (callback) {
-        callback(err);
+        callback();
       }
-      return;
     }
-    logging.info(`Updated book ${bookId}`);
-    bookCount += 1;
-    if (callback) {
-      callback();
-    }
-  });
+  );
 }
 
 // Tries to find additional information about a book and updates
 // the book's data. Also uploads a cover image to Cloud Storage
 // if available.
-function findBookInfo (book, cb) {
+function findBookInfo(book, cb) {
   queryBooksApi(book.title, (err, r) => {
     if (!err && !r.items) {
       err = 'Not found';
@@ -137,21 +140,22 @@ function findBookInfo (book, cb) {
       top.volumeInfo.imageLinks.smallThumbnail;
     const imageName = `${book.id}.jpg`;
 
-    images.downloadAndUploadImage(
-      imageUrl, imageName, (err, publicUrl) => {
-        if (!err) {
-          book.imageUrl = publicUrl;
-        }
-        cb(null, book);
-      });
+    images.downloadAndUploadImage(imageUrl, imageName, (err, publicUrl) => {
+      if (!err) {
+        book.imageUrl = publicUrl;
+      }
+      cb(null, book);
+    });
   });
 }
 
 // Calls out to the Google Books API to get additional
 // information about a given book.
-function queryBooksApi (query, cb) {
+function queryBooksApi(query, cb) {
   request(
-    `https://www.googleapis.com/books/v1/volumes?q=${encodeURIComponent(query)}`,
+    `https://www.googleapis.com/books/v1/volumes?q=${encodeURIComponent(
+      query
+    )}`,
     (err, resp, body) => {
       if (err || resp.statusCode !== 200) {
         cb(err || `Response returned ${resp.statusCode}`);
@@ -165,7 +169,7 @@ function queryBooksApi (query, cb) {
 app.mocks = {
   processBook: processBook,
   findBookInfo: findBookInfo,
-  queryBooksApi: queryBooksApi
+  queryBooksApi: queryBooksApi,
 };
 
 // Proxyquire requires this *exact* line, hence the "app.mocks" above
diff --git a/optional-kubernetes-engine/app.js b/optional-kubernetes-engine/app.js
index c0a257fac..27d1c1aae 100644
--- a/optional-kubernetes-engine/app.js
+++ b/optional-kubernetes-engine/app.js
@@ -43,14 +43,14 @@ const sessionConfig = {
   resave: false,
   saveUninitialized: false,
   secret: config.get('SECRET'),
-  signed: true
+  signed: true,
 };
 
 // In production use the App Engine Memcache instance to store session data,
 // otherwise fallback to the default MemoryStore in development.
 if (config.get('NODE_ENV') === 'production' && config.get('MEMCACHE_URL')) {
   sessionConfig.store = new MemcachedStore({
-    hosts: [config.get('MEMCACHE_URL')]
+    hosts: [config.get('MEMCACHE_URL')],
   });
 }
 
@@ -87,7 +87,7 @@ app.use((req, res) => {
 });
 
 // Basic error handler
-app.use((err, req, res, next) => {
+app.use((err, req, res) => {
   /* jshint unused:false */
   // If our routes specified a specific response, then send that. Otherwise,
   // send a generic message so as not to leak anything.
diff --git a/optional-kubernetes-engine/books/api.js b/optional-kubernetes-engine/books/api.js
index 5d11f7fb9..108c996c5 100644
--- a/optional-kubernetes-engine/books/api.js
+++ b/optional-kubernetes-engine/books/api.js
@@ -16,7 +16,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -38,7 +38,7 @@ router.get('/', (req, res, next) => {
     }
     res.json({
       items: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -94,7 +94,7 @@ router.put('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.delete('/:book', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
@@ -111,7 +111,7 @@ router.use((err, req, res, next) => {
   // responding to the request
   err.response = {
     message: err.message,
-    internalCode: err.code
+    internalCode: err.code,
   };
   next(err);
 });
diff --git a/optional-kubernetes-engine/books/crud.js b/optional-kubernetes-engine/books/crud.js
index b33af34cf..8cafa66b5 100644
--- a/optional-kubernetes-engine/books/crud.js
+++ b/optional-kubernetes-engine/books/crud.js
@@ -17,7 +17,7 @@ const express = require('express');
 const images = require('../lib/images');
 const oauth2 = require('../lib/oauth2');
 
-function getModel () {
+function getModel() {
   return require(`./model-${require('../config').get('DATA_BACKEND')}`);
 }
 
@@ -46,7 +46,7 @@ router.get('/', (req, res, next) => {
     }
     res.render('books/list.pug', {
       books: entities,
-      nextPageToken: cursor
+      nextPageToken: cursor,
     });
   });
 });
@@ -58,14 +58,14 @@ router.get('/mine', oauth2.required, (req, res, next) => {
     req.user.id,
     10,
     req.query.pageToken,
-    (err, entities, cursor, apiResponse) => {
+    (err, entities, cursor) => {
       if (err) {
         next(err);
         return;
       }
       res.render('books/list.pug', {
         books: entities,
-        nextPageToken: cursor
+        nextPageToken: cursor,
       });
     }
   );
@@ -79,7 +79,7 @@ router.get('/mine', oauth2.required, (req, res, next) => {
 router.get('/add', (req, res) => {
   res.render('books/form.pug', {
     book: {},
-    action: 'Add'
+    action: 'Add',
   });
 });
 
@@ -135,7 +135,7 @@ router.get('/:book/edit', (req, res, next) => {
     }
     res.render('books/form.pug', {
       book: entity,
-      action: 'Edit'
+      action: 'Edit',
     });
   });
 });
@@ -180,7 +180,7 @@ router.get('/:book', (req, res, next) => {
       return;
     }
     res.render('books/view.pug', {
-      book: entity
+      book: entity,
     });
   });
 });
@@ -191,7 +191,7 @@ router.get('/:book', (req, res, next) => {
  * Delete a book.
  */
 router.get('/:book/delete', (req, res, next) => {
-  getModel().delete(req.params.book, (err) => {
+  getModel().delete(req.params.book, err => {
     if (err) {
       next(err);
       return;
diff --git a/optional-kubernetes-engine/books/model-cloudsql.js b/optional-kubernetes-engine/books/model-cloudsql.js
index 897c22a03..ca0a5f009 100644
--- a/optional-kubernetes-engine/books/model-cloudsql.js
+++ b/optional-kubernetes-engine/books/model-cloudsql.js
@@ -21,19 +21,23 @@ const background = require('../lib/background');
 const options = {
   user: config.get('MYSQL_USER'),
   password: config.get('MYSQL_PASSWORD'),
-  database: 'bookshelf'
+  database: 'bookshelf',
 };
 
-if (config.get('INSTANCE_CONNECTION_NAME') && config.get('NODE_ENV') === 'production') {
+if (
+  config.get('INSTANCE_CONNECTION_NAME') &&
+  config.get('NODE_ENV') === 'production'
+) {
   options.socketPath = `/cloudsql/${config.get('INSTANCE_CONNECTION_NAME')}`;
 }
 
 const connection = mysql.createConnection(options);
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
-    'SELECT * FROM `books` LIMIT ? OFFSET ?', [limit, token],
+    'SELECT * FROM `books` LIMIT ? OFFSET ?',
+    [limit, token],
     (err, results) => {
       if (err) {
         cb(err);
@@ -45,7 +49,7 @@ function list (limit, token, cb) {
   );
 }
 
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   connection.query(
     'SELECT * FROM `books` WHERE `createdById` = ? LIMIT ? OFFSET ?',
@@ -57,10 +61,11 @@ function listBy (userId, limit, token, cb) {
       }
       const hasMore = results.length === limit ? token + results.length : false;
       cb(null, results, hasMore);
-    });
+    }
+  );
 }
 
-function create (data, queueBook, cb) {
+function create(data, queueBook, cb) {
   connection.query('INSERT INTO `books` SET ?', data, (err, res) => {
     if (err) {
       cb(err);
@@ -73,13 +78,15 @@ function create (data, queueBook, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   connection.query(
-    'SELECT * FROM `books` WHERE `id` = ?', id, (err, results) => {
+    'SELECT * FROM `books` WHERE `id` = ?',
+    id,
+    (err, results) => {
       if (!err && !results.length) {
         err = {
           code: 404,
-          message: 'Not found'
+          message: 'Not found',
         };
       }
       if (err) {
@@ -87,24 +94,24 @@ function read (id, cb) {
         return;
       }
       cb(null, results[0]);
-    });
+    }
+  );
 }
 
-function update (id, data, queueBook, cb) {
-  connection.query(
-    'UPDATE `books` SET ? WHERE `id` = ?', [data, id], (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      if (queueBook) {
-        background.queueBook(id);
-      }
-      read(id, cb);
-    });
+function update(id, data, queueBook, cb) {
+  connection.query('UPDATE `books` SET ? WHERE `id` = ?', [data, id], err => {
+    if (err) {
+      cb(err);
+      return;
+    }
+    if (queueBook) {
+      background.queueBook(id);
+    }
+    read(id, cb);
+  });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   connection.query('DELETE FROM `books` WHERE `id` = ?', id, cb);
 }
 
@@ -115,7 +122,7 @@ module.exports = {
   create: create,
   read: read,
   update: update,
-  delete: _delete
+  delete: _delete,
 };
 
 if (module === require.main) {
@@ -124,7 +131,8 @@ if (module === require.main) {
 
   console.log(
     `Running this script directly will allow you to initialize your mysql
-    database.\n This script will not modify any existing tables.\n`);
+    database.\n This script will not modify any existing tables.\n`
+  );
 
   prompt.get(['user', 'password'], (err, result) => {
     if (err) {
@@ -134,10 +142,15 @@ if (module === require.main) {
   });
 }
 
-function createSchema (config) {
-  const connection = mysql.createConnection(extend({
-    multipleStatements: true
-  }, config));
+function createSchema(config) {
+  const connection = mysql.createConnection(
+    extend(
+      {
+        multipleStatements: true,
+      },
+      config
+    )
+  );
 
   connection.query(
     `CREATE DATABASE IF NOT EXISTS \`bookshelf\`
@@ -154,7 +167,7 @@ function createSchema (config) {
       \`createdBy\` VARCHAR(255) NULL,
       \`createdById\` VARCHAR(255) NULL,
     PRIMARY KEY (\`id\`));`,
-    (err) => {
+    err => {
       if (err) {
         throw err;
       }
diff --git a/optional-kubernetes-engine/books/model-datastore.js b/optional-kubernetes-engine/books/model-datastore.js
index 4ba2a3c59..51782c005 100644
--- a/optional-kubernetes-engine/books/model-datastore.js
+++ b/optional-kubernetes-engine/books/model-datastore.js
@@ -18,7 +18,7 @@ const config = require('../config');
 const background = require('../lib/background');
 
 const ds = Datastore({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const kind = 'Book';
 
@@ -38,7 +38,7 @@ const kind = 'Book';
 //     id: id,
 //     property: value
 //   }
-function fromDatastore (obj) {
+function fromDatastore(obj) {
   obj.id = obj[Datastore.KEY].id;
   return obj;
 }
@@ -66,17 +66,17 @@ function fromDatastore (obj) {
 //       excludeFromIndexes: true
 //     }
 //   ]
-function toDatastore (obj, nonIndexed) {
+function toDatastore(obj, nonIndexed) {
   nonIndexed = nonIndexed || [];
   let results = [];
-  Object.keys(obj).forEach((k) => {
+  Object.keys(obj).forEach(k => {
     if (obj[k] === undefined) {
       return;
     }
     results.push({
       name: k,
       value: obj[k],
-      excludeFromIndexes: nonIndexed.indexOf(k) !== -1
+      excludeFromIndexes: nonIndexed.indexOf(k) !== -1,
     });
   });
   return results;
@@ -86,8 +86,9 @@ function toDatastore (obj, nonIndexed) {
 // The ``limit`` argument determines the maximum amount of results to
 // return per page. The ``token`` argument allows requesting additional
 // pages. The callback is invoked with ``(err, books, nextPageToken)``.
-function list (limit, token, cb) {
-  const q = ds.createQuery([kind])
+function list(limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .limit(limit)
     .order('title')
     .start(token);
@@ -97,15 +98,19 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
 
 // Similar to ``list``, but only lists the books created by the specified
 // user.
-function listBy (userId, limit, token, cb) {
-  const q = ds.createQuery([kind])
+function listBy(userId, limit, token, cb) {
+  const q = ds
+    .createQuery([kind])
     .filter('createdById', '=', userId)
     .limit(limit)
     .start(token);
@@ -115,7 +120,10 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    const hasMore = nextQuery.moreResults !== Datastore.NO_MORE_RESULTS ? nextQuery.endCursor : false;
+    const hasMore =
+      nextQuery.moreResults !== Datastore.NO_MORE_RESULTS
+        ? nextQuery.endCursor
+        : false;
     cb(null, entities.map(fromDatastore), hasMore);
   });
 }
@@ -123,7 +131,7 @@ function listBy (userId, limit, token, cb) {
 // Creates a new book or updates an existing book with new data. The provided
 // data is automatically translated into Datastore format. The book will be
 // queued for background processing.
-function update (id, data, queueBook, cb) {
+function update(id, data, queueBook, cb) {
   let key;
   if (id) {
     key = ds.key([kind, parseInt(id, 10)]);
@@ -133,32 +141,29 @@ function update (id, data, queueBook, cb) {
 
   const entity = {
     key: key,
-    data: toDatastore(data, ['description'])
+    data: toDatastore(data, ['description']),
   };
 
-  ds.save(
-    entity,
-    (err) => {
-      if (err) {
-        cb(err);
-        return;
-      }
-      data.id = entity.key.id;
-      if (queueBook) {
-        background.queueBook(data.id);
-      }
-      cb(null, data);
+  ds.save(entity, err => {
+    if (err) {
+      cb(err);
+      return;
     }
-  );
+    data.id = entity.key.id;
+    if (queueBook) {
+      background.queueBook(data.id);
+    }
+    cb(null, data);
+  });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.get(key, (err, entity) => {
     if (!err && !entity) {
       err = {
         code: 404,
-        message: 'Not found'
+        message: 'Not found',
       };
     }
     if (err) {
@@ -169,7 +174,7 @@ function read (id, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   const key = ds.key([kind, parseInt(id, 10)]);
   ds.delete(key, cb);
 }
@@ -182,5 +187,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/optional-kubernetes-engine/books/model-mongodb.js b/optional-kubernetes-engine/books/model-mongodb.js
index 5892c483c..c993c3233 100644
--- a/optional-kubernetes-engine/books/model-mongodb.js
+++ b/optional-kubernetes-engine/books/model-mongodb.js
@@ -20,7 +20,7 @@ const background = require('../lib/background');
 
 let collection;
 
-function fromMongo (item) {
+function fromMongo(item) {
   if (Array.isArray(item) && item.length) {
     item = item[0];
   }
@@ -29,30 +29,33 @@ function fromMongo (item) {
   return item;
 }
 
-function toMongo (item) {
+function toMongo(item) {
   delete item.id;
   return item;
 }
 
-function getCollection (cb) {
+function getCollection(cb) {
   if (collection) {
     setImmediate(() => {
       cb(null, collection);
     });
     return;
   }
-  MongoClient.connect(config.get('MONGO_URL'), (err, client) => {
-    if (err) {
-      cb(err);
-      return;
+  MongoClient.connect(
+    config.get('MONGO_URL'),
+    (err, client) => {
+      if (err) {
+        cb(err);
+        return;
+      }
+      const db = client.db(config.get('MONGO_DB_NAME'));
+      collection = db.collection(config.get('MONGO_COLLECTION'));
+      cb(null, collection);
     }
-    const db = client.db(config.get('MONGO_DB_NAME'));
-    collection = db.collection(config.get('MONGO_COLLECTION'));
-    cb(null, collection);
-  });
+  );
 }
 
-function list (limit, token, cb) {
+function list(limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   if (isNaN(token)) {
     cb(new Error('invalid token'));
@@ -63,7 +66,8 @@ function list (limit, token, cb) {
       cb(err);
       return;
     }
-    collection.find({})
+    collection
+      .find({})
       .skip(token)
       .limit(limit)
       .toArray((err, results) => {
@@ -78,7 +82,7 @@ function list (limit, token, cb) {
   });
 }
 
-function listBy (userId, limit, token, cb) {
+function listBy(userId, limit, token, cb) {
   token = token ? parseInt(token, 10) : 0;
   if (isNaN(token)) {
     cb(new Error('invalid token'));
@@ -89,7 +93,8 @@ function listBy (userId, limit, token, cb) {
       cb(err);
       return;
     }
-    collection.find({ createdById: userId })
+    collection
+      .find({createdById: userId})
       .skip(token)
       .limit(limit)
       .toArray((err, results) => {
@@ -104,7 +109,7 @@ function listBy (userId, limit, token, cb) {
   });
 }
 
-function create (data, queueBook, cb) {
+function create(data, queueBook, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
@@ -124,42 +129,45 @@ function create (data, queueBook, cb) {
   });
 }
 
-function read (id, cb) {
+function read(id, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
       return;
     }
-    collection.findOne({
-      _id: new ObjectID(id)
-    }, (err, result) => {
-      if (!err && !result) {
-        err = {
-          code: 404,
-          message: 'Not found'
-        };
-        return;
-      }
-      if (err) {
-        cb(err);
-        return;
+    collection.findOne(
+      {
+        _id: new ObjectID(id),
+      },
+      (err, result) => {
+        if (!err && !result) {
+          err = {
+            code: 404,
+            message: 'Not found',
+          };
+          return;
+        }
+        if (err) {
+          cb(err);
+          return;
+        }
+        cb(null, fromMongo(result));
       }
-      cb(null, fromMongo(result));
-    });
+    );
   });
 }
 
-function update (id, data, queueBook, cb) {
+function update(id, data, queueBook, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
       return;
     }
     collection.update(
-      { _id: new ObjectID(id) },
-      { '$set': toMongo(data) },
-      { w: 1 },
-      (err) => {
+      {_id: new ObjectID(id)},
+      {$set: toMongo(data)},
+      {w: 1},
+      err => {
         if (err) {
           cb(err);
           return;
@@ -173,15 +181,18 @@ function update (id, data, queueBook, cb) {
   });
 }
 
-function _delete (id, cb) {
+function _delete(id, cb) {
   getCollection((err, collection) => {
     if (err) {
       cb(err);
       return;
     }
-    collection.remove({
-      _id: new ObjectID(id)
-    }, cb);
+    collection.remove(
+      {
+        _id: new ObjectID(id),
+      },
+      cb
+    );
   });
 }
 
@@ -191,5 +202,5 @@ module.exports = {
   update: update,
   delete: _delete,
   list: list,
-  listBy: listBy
+  listBy: listBy,
 };
diff --git a/optional-kubernetes-engine/config.js b/optional-kubernetes-engine/config.js
index f80de6106..82943d0d2 100644
--- a/optional-kubernetes-engine/config.js
+++ b/optional-kubernetes-engine/config.js
@@ -15,7 +15,7 @@
 
 // Hierarchical node.js configuration with command-line arguments, environment
 // variables, and files.
-const nconf = module.exports = require('nconf');
+const nconf = (module.exports = require('nconf'));
 const path = require('path');
 
 nconf
@@ -40,10 +40,10 @@ nconf
     'SECRET',
     'SUBSCRIPTION_NAME',
     'INSTANCE_CONNECTION_NAME',
-    'TOPIC_NAME'
+    'TOPIC_NAME',
   ])
   // 3. Config file
-  .file({ file: path.join(__dirname, 'config.json') })
+  .file({file: path.join(__dirname, 'config.json')})
   // 4. Defaults
   .defaults({
     // Typically you will create a bucket with the same name as your project ID.
@@ -79,7 +79,7 @@ nconf
     SECRET: 'keyboardcat',
 
     SUBSCRIPTION_NAME: 'shared-worker-subscription',
-    TOPIC_NAME: 'book-process-queue'
+    TOPIC_NAME: 'book-process-queue',
   });
 
 // Check for required settings
@@ -97,8 +97,10 @@ if (nconf.get('DATA_BACKEND') === 'cloudsql') {
   checkConfig('MONGO_DB_NAME');
 }
 
-function checkConfig (setting) {
+function checkConfig(setting) {
   if (!nconf.get(setting)) {
-    throw new Error(`You must set ${setting} as an environment variable or in config.json!`);
+    throw new Error(
+      `You must set ${setting} as an environment variable or in config.json!`
+    );
   }
 }
diff --git a/optional-kubernetes-engine/lib/background.js b/optional-kubernetes-engine/lib/background.js
index f734ccd61..6eec2a361 100644
--- a/optional-kubernetes-engine/lib/background.js
+++ b/optional-kubernetes-engine/lib/background.js
@@ -21,7 +21,7 @@ const topicName = config.get('TOPIC_NAME');
 const subscriptionName = config.get('SUBSCRIPTION_NAME');
 
 const pubsub = new Pubsub({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 
 // This configuration will automatically create the topic if
@@ -29,7 +29,7 @@ const pubsub = new Pubsub({
 // that a least one subscription exists on the topic before
 // publishing anything to it as topics without subscribers
 // will essentially drop any messages.
-function getTopic (cb) {
+function getTopic(cb) {
   pubsub.createTopic(topicName, (err, topic) => {
     // topic already exists.
     if (err && err.code === 6) {
@@ -44,16 +44,16 @@ function getTopic (cb) {
 // When more than one worker is running they will all share the same
 // subscription, which means that pub/sub will evenly distribute messages
 // to each worker.
-function subscribe (cb) {
+function subscribe(cb) {
   let subscription;
 
   // Event handlers
-  function handleMessage (message) {
+  function handleMessage(message) {
     const data = JSON.parse(message.data);
     message.ack();
     cb(null, data);
   }
-  function handleError (err) {
+  function handleError(err) {
     logging.error(err);
   }
 
@@ -75,7 +75,9 @@ function subscribe (cb) {
       subscription.on('message', handleMessage);
       subscription.on('error', handleError);
 
-      logging.info(`Listening to ${topicName} with subscription ${subscriptionName}`);
+      logging.info(
+        `Listening to ${topicName} with subscription ${subscriptionName}`
+      );
     });
   });
 
@@ -91,7 +93,7 @@ function subscribe (cb) {
 }
 
 // Adds a book to the queue to be processed by the worker.
-function queueBook (bookId) {
+function queueBook(bookId) {
   getTopic((err, topic) => {
     if (err) {
       logging.error('Error occurred while getting pubsub topic', err);
@@ -100,11 +102,11 @@ function queueBook (bookId) {
 
     const data = {
       action: 'processBook',
-      bookId: bookId
+      bookId: bookId,
     };
 
     const publisher = topic.publisher();
-    publisher.publish(Buffer.from(JSON.stringify(data)), (err) => {
+    publisher.publish(Buffer.from(JSON.stringify(data)), err => {
       if (err) {
         logging.error('Error occurred while queuing background task', err);
       } else {
@@ -116,5 +118,5 @@ function queueBook (bookId) {
 
 module.exports = {
   subscribe,
-  queueBook
+  queueBook,
 };
diff --git a/optional-kubernetes-engine/lib/images.js b/optional-kubernetes-engine/lib/images.js
index 63f2045ac..fc2973538 100644
--- a/optional-kubernetes-engine/lib/images.js
+++ b/optional-kubernetes-engine/lib/images.js
@@ -21,18 +21,18 @@ const logging = require('./logging');
 const CLOUD_BUCKET = config.get('CLOUD_BUCKET');
 
 const storage = Storage({
-  projectId: config.get('GCLOUD_PROJECT')
+  projectId: config.get('GCLOUD_PROJECT'),
 });
 const bucket = storage.bucket(CLOUD_BUCKET);
 
 // Downloads a given image (by URL) and then uploads it to
 // Google Cloud Storage. Provides the publicly accessable URL to the callback.
-function downloadAndUploadImage (sourceUrl, destFileName, cb) {
+function downloadAndUploadImage(sourceUrl, destFileName, cb) {
   const file = bucket.file(destFileName);
 
   request
     .get(sourceUrl)
-    .on('error', (err) => {
+    .on('error', err => {
       logging.warn(`Could not fetch image ${sourceUrl}`, err);
       cb(err);
     })
@@ -43,7 +43,7 @@ function downloadAndUploadImage (sourceUrl, destFileName, cb) {
         cb(null, getPublicUrl(destFileName));
       });
     })
-    .on('error', (err) => {
+    .on('error', err => {
       logging.error('Could not upload image', err);
       cb(err);
     });
@@ -52,7 +52,7 @@ function downloadAndUploadImage (sourceUrl, destFileName, cb) {
 // Returns the public, anonymously accessable URL to a given Cloud Storage
 // object.
 // The object's ACL has to be set to public read.
-function getPublicUrl (filename) {
+function getPublicUrl(filename) {
   return `https://storage.googleapis.com/${CLOUD_BUCKET}/${filename}`;
 }
 
@@ -60,7 +60,7 @@ function getPublicUrl (filename) {
 // req.file is processed and will have two new properties:
 // * ``cloudStorageObject`` the object name in cloud storage.
 // * ``cloudStoragePublicUrl`` the public url to the object.
-function sendUploadToGCS (req, res, next) {
+function sendUploadToGCS(req, res, next) {
   if (!req.file) {
     return next();
   }
@@ -69,11 +69,11 @@ function sendUploadToGCS (req, res, next) {
   const file = bucket.file(gcsname);
   const stream = file.createWriteStream({
     metadata: {
-      contentType: req.file.mimetype
-    }
+      contentType: req.file.mimetype,
+    },
   });
 
-  stream.on('error', (err) => {
+  stream.on('error', err => {
     req.file.cloudStorageError = err;
     next(err);
   });
@@ -96,13 +96,13 @@ const Multer = require('multer');
 const multer = Multer({
   storage: Multer.MemoryStorage,
   limits: {
-    fileSize: 5 * 1024 * 1024 // no larger than 5mb
-  }
+    fileSize: 5 * 1024 * 1024, // no larger than 5mb
+  },
 });
 
 module.exports = {
   downloadAndUploadImage,
   getPublicUrl,
   sendUploadToGCS,
-  multer
+  multer,
 };
diff --git a/optional-kubernetes-engine/lib/logging.js b/optional-kubernetes-engine/lib/logging.js
index 13a48b589..8fd939f1c 100644
--- a/optional-kubernetes-engine/lib/logging.js
+++ b/optional-kubernetes-engine/lib/logging.js
@@ -15,7 +15,8 @@
 
 const winston = require('winston');
 const expressWinston = require('express-winston');
-const StackdriverTransport = require('@google-cloud/logging-winston').LoggingWinston;
+const StackdriverTransport = require('@google-cloud/logging-winston')
+  .LoggingWinston;
 
 const colorize = process.env.NODE_ENV !== 'production';
 
@@ -25,11 +26,11 @@ const requestLogger = expressWinston.logger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: false,
-      colorize: colorize
-    })
+      colorize: colorize,
+    }),
   ],
   expressFormat: true,
-  meta: false
+  meta: false,
 });
 
 // Logger to capture any top-level errors and output json diagnostic info.
@@ -38,9 +39,9 @@ const errorLogger = expressWinston.errorLogger({
     new StackdriverTransport(),
     new winston.transports.Console({
       json: true,
-      colorize: colorize
-    })
-  ]
+      colorize: colorize,
+    }),
+  ],
 });
 
 module.exports = {
@@ -52,5 +53,5 @@ module.exports = {
   log: winston.log,
   verbose: winston.verbose,
   debug: winston.debug,
-  silly: winston.silly
+  silly: winston.silly,
 };
diff --git a/optional-kubernetes-engine/lib/oauth2.js b/optional-kubernetes-engine/lib/oauth2.js
index c6593420d..37c1d4fd9 100644
--- a/optional-kubernetes-engine/lib/oauth2.js
+++ b/optional-kubernetes-engine/lib/oauth2.js
@@ -20,7 +20,7 @@ const config = require('../config');
 const passport = require('passport');
 const GoogleStrategy = require('passport-google-oauth20').Strategy;
 
-function extractProfile (profile) {
+function extractProfile(profile) {
   let imageUrl = '';
   if (profile.photos && profile.photos.length) {
     imageUrl = profile.photos[0].value;
@@ -28,7 +28,7 @@ function extractProfile (profile) {
   return {
     id: profile.id,
     displayName: profile.displayName,
-    image: imageUrl
+    image: imageUrl,
   };
 }
 
@@ -39,16 +39,21 @@ function extractProfile (profile) {
 // along with the user's profile. The function must invoke `cb` with a user
 // object, which will be set at `req.user` in route handlers after
 // authentication.
-passport.use(new GoogleStrategy({
-  clientID: config.get('OAUTH2_CLIENT_ID'),
-  clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
-  callbackURL: config.get('OAUTH2_CALLBACK'),
-  accessType: 'offline'
-}, (accessToken, refreshToken, profile, cb) => {
-  // Extract the minimal profile information we need from the profile object
-  // provided by Google
-  cb(null, extractProfile(profile));
-}));
+passport.use(
+  new GoogleStrategy(
+    {
+      clientID: config.get('OAUTH2_CLIENT_ID'),
+      clientSecret: config.get('OAUTH2_CLIENT_SECRET'),
+      callbackURL: config.get('OAUTH2_CALLBACK'),
+      accessType: 'offline',
+    },
+    (accessToken, refreshToken, profile, cb) => {
+      // Extract the minimal profile information we need from the profile object
+      // provided by Google
+      cb(null, extractProfile(profile));
+    }
+  )
+);
 
 passport.serializeUser((user, cb) => {
   cb(null, user);
@@ -64,7 +69,7 @@ const router = express.Router();
 // Middleware that requires the user to be logged in. If the user is not logged
 // in, it will redirect the user to authorize the application and then return
 // them to the original URL they requested.
-function authRequired (req, res, next) {
+function authRequired(req, res, next) {
   if (!req.user) {
     req.session.oauth2return = req.originalUrl;
     return res.redirect('/auth/login');
@@ -74,10 +79,14 @@ function authRequired (req, res, next) {
 
 // Middleware that exposes the user's profile as well as login/logout URLs to
 // any templates. These are available as `profile`, `login`, and `logout`.
-function addTemplateVariables (req, res, next) {
+function addTemplateVariables(req, res, next) {
   res.locals.profile = req.user;
-  res.locals.login = `/auth/login?return=${encodeURIComponent(req.originalUrl)}`;
-  res.locals.logout = `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`;
+  res.locals.login = `/auth/login?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
+  res.locals.logout = `/auth/logout?return=${encodeURIComponent(
+    req.originalUrl
+  )}`;
   next();
 }
 // [END middleware]
@@ -102,7 +111,7 @@ router.get(
   },
 
   // Start OAuth 2 flow using Passport.js
-  passport.authenticate('google', { scope: ['email', 'profile'] })
+  passport.authenticate('google', {scope: ['email', 'profile']})
 );
 // [END authorize]
 
@@ -135,5 +144,5 @@ module.exports = {
   extractProfile: extractProfile,
   router: router,
   required: authRequired,
-  template: addTemplateVariables
+  template: addTemplateVariables,
 };
diff --git a/optional-kubernetes-engine/package.json b/optional-kubernetes-engine/package.json
index c4e853edf..8f8b47b02 100644
--- a/optional-kubernetes-engine/package.json
+++ b/optional-kubernetes-engine/package.json
@@ -22,34 +22,6 @@
       }
     }
   },
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
     "start": "node ${SCRIPT:-app.js}",
     "test": "repo-tools test app && ava -t 30s --tap test/*.test.js",
diff --git a/optional-kubernetes-engine/test/_api-tests.js b/optional-kubernetes-engine/test/_api-tests.js
index 8cd72283f..667ea1a92 100644
--- a/optional-kubernetes-engine/test/_api-tests.js
+++ b/optional-kubernetes-engine/test/_api-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -26,12 +26,12 @@ module.exports = (DATA_BACKEND) => {
     appConfig.set(`DATA_BACKEND`, DATA_BACKEND);
   });
 
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `beep` })
+      .send({title: `beep`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `beep`);
@@ -39,13 +39,13 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should list books`, (t) => {
+  test.serial.cb(`should list books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       getRequest(testConfig)
         .get(`/api/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.true(Array.isArray(response.body.items));
           t.true(response.body.items.length >= 1);
         })
@@ -53,11 +53,11 @@ module.exports = (DATA_BACKEND) => {
     }, 1000);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .delete(`/api/books/${id}/`)
       // .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `OK`);
       })
       .end(t.end);
diff --git a/optional-kubernetes-engine/test/_crud-tests.js b/optional-kubernetes-engine/test/_crud-tests.js
index 7d1b151d9..3ec443ebf 100644
--- a/optional-kubernetes-engine/test/_crud-tests.js
+++ b/optional-kubernetes-engine/test/_crud-tests.js
@@ -16,7 +16,7 @@
 const getRequest = require(`@google-cloud/nodejs-repo-tools`).getRequest;
 const test = require(`ava`);
 
-module.exports = (DATA_BACKEND) => {
+module.exports = DATA_BACKEND => {
   let originalDataBackend, id, testConfig, appConfig;
 
   test.before(() => {
@@ -27,12 +27,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should create a book`, (t) => {
+  test.serial.cb(`should create a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -40,30 +40,30 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show a list of books`, (t) => {
+  test.serial.cb(`should show a list of books`, t => {
     // Give Datastore time to become consistent
     setTimeout(() => {
       const expected = /<div class="media-body">/;
       getRequest(testConfig)
         .get(`/books`)
         .expect(200)
-        .expect((response) => {
+        .expect(response => {
           t.regex(response.text, expected);
         })
         .end(t.end);
     }, 2000);
   });
 
-  test.serial.cb(`should handle error`, (t) => {
+  test.serial.cb(`should handle error`, t => {
     getRequest(testConfig)
       .get(`/books`)
-      .query({ pageToken: `badrequest` })
+      .query({pageToken: `badrequest`})
       .expect(500)
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -74,13 +74,13 @@ module.exports = (DATA_BACKEND) => {
     }
   });
 
-  test.serial.cb(`should post to add book form`, (t) => {
+  test.serial.cb(`should post to add book form`, t => {
     const expected = /Redirecting to \/books\//;
     getRequest(testConfig)
       .post(`/books/add`)
       .field(`title`, `my book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         const location = response.headers.location;
         const idPart = location.replace(`/books/`, ``);
         if (DATA_BACKEND !== `mongodb`) {
@@ -93,19 +93,19 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should show add book form`, (t) => {
+  test.serial.cb(`should show add book form`, t => {
     const expected = /Add book/;
     getRequest(testConfig)
       .get(`/books/add`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
   // delete the book
-  test.serial.cb((t) => {
+  test.serial.cb(t => {
     if (id) {
       getRequest(testConfig)
         .delete(`/api/books/${id}`)
@@ -117,12 +117,12 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // setup a book
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     getRequest(testConfig)
       .post(`/api/books`)
-      .send({ title: `my book` })
+      .send({title: `my book`})
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         id = response.body.id;
         t.truthy(response.body.id);
         t.is(response.body.title, `my book`);
@@ -130,47 +130,46 @@ module.exports = (DATA_BACKEND) => {
       .end(t.end);
   });
 
-  test.serial.cb(`should update a book`, (t) => {
+  test.serial.cb(`should update a book`, t => {
     const expected = new RegExp(`Redirecting to /books/${id}`);
     getRequest(testConfig)
       .post(`/books/${id}/edit`)
       .field(`title`, `my other book`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show edit book form`, (t) => {
-    const expected =
-      /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
+  test.serial.cb(`should show edit book form`, t => {
+    const expected = /<input class="form-control" type="text" name="title" id="title" value="my other book">/;
     getRequest(testConfig)
       .get(`/books/${id}/edit`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should show a book`, (t) => {
+  test.serial.cb(`should show a book`, t => {
     const expected = /<h4>my other book&nbsp;<small><\/small><\/h4>/;
     getRequest(testConfig)
       .get(`/books/${id}`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, expected);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should delete a book`, (t) => {
+  test.serial.cb(`should delete a book`, t => {
     const expected = /Redirecting to \/books/;
     getRequest(testConfig)
       .get(`/books/${id}/delete`)
       .expect(302)
-      .expect((response) => {
+      .expect(response => {
         id = undefined;
         t.regex(response.text, expected);
       })
@@ -178,7 +177,7 @@ module.exports = (DATA_BACKEND) => {
   });
 
   // clean up
-  test.always.after.cb((t) => {
+  test.always.after.cb(t => {
     appConfig.set(`DATA_BACKEND`, originalDataBackend);
 
     if (id) {
diff --git a/optional-kubernetes-engine/test/_test-config.js b/optional-kubernetes-engine/test/_test-config.js
index 4b0a4b073..32c70d0fe 100644
--- a/optional-kubernetes-engine/test/_test-config.js
+++ b/optional-kubernetes-engine/test/_test-config.js
@@ -30,6 +30,6 @@ module.exports = {
   env: {
     PORT: PORT,
     SUBSCRIPTION_NAME: `shared-worker-subscription-${TESTNAME}`,
-    TOPIC_NAME: `book-process-queue-${TESTNAME}`
-  }
+    TOPIC_NAME: `book-process-queue-${TESTNAME}`,
+  },
 };
diff --git a/optional-kubernetes-engine/test/_test-config.worker.js b/optional-kubernetes-engine/test/_test-config.worker.js
index f143d77ee..95e493e45 100644
--- a/optional-kubernetes-engine/test/_test-config.worker.js
+++ b/optional-kubernetes-engine/test/_test-config.worker.js
@@ -27,6 +27,6 @@ module.exports = {
   port: port,
   env: {
     SUBSCRIPTION_NAME: `shared-worker-subscription-${test}`,
-    TOPIC_NAME: `book-process-queue-${test}`
-  }
+    TOPIC_NAME: `book-process-queue-${test}`,
+  },
 };
diff --git a/optional-kubernetes-engine/test/app.test.js b/optional-kubernetes-engine/test/app.test.js
index 065c9a660..ef9dc9d40 100644
--- a/optional-kubernetes-engine/test/app.test.js
+++ b/optional-kubernetes-engine/test/app.test.js
@@ -19,33 +19,34 @@ const sinon = require(`sinon`);
 const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
-test.cb(`should redirect / to /books`, (t) => {
-  utils.getRequest(testConfig)
+test.cb(`should redirect / to /books`, t => {
+  utils
+    .getRequest(testConfig)
     .get(`/`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       t.regex(response.text, /Redirecting to \/books/);
     })
     .end(t.end);
 });
 
-test(`should check config`, (t) => {
+test(`should check config`, t => {
   const nconfMock = {
     argv: sinon.stub().returnsThis(),
     env: sinon.stub().returnsThis(),
     file: sinon.stub().returnsThis(),
     defaults: sinon.stub().returnsThis(),
-    get: function (setting) {
+    get: function(setting) {
       return this[setting];
-    }
+    },
   };
 
-  function getMsg (setting) {
+  function getMsg(setting) {
     return `You must set ${setting} as an environment variable or in config.json!`;
   }
 
   const testFunc = () => {
-    proxyquire(`../config`, { nconf: nconfMock });
+    proxyquire(`../config`, {nconf: nconfMock});
   };
 
   nconfMock.DATA_BACKEND = `datastore`;
diff --git a/optional-kubernetes-engine/test/background.test.js b/optional-kubernetes-engine/test/background.test.js
index a90948814..f835d3090 100644
--- a/optional-kubernetes-engine/test/background.test.js
+++ b/optional-kubernetes-engine/test/background.test.js
@@ -20,51 +20,48 @@ const test = require(`ava`);
 let background;
 const mocks = {};
 
-test.beforeEach((t) => {
+test.beforeEach(t => {
   // Mock dependencies used by background.js
   mocks.config = {
     GCLOUD_PROJECT: process.env.GCLOUD_PROJECT,
     SUBSCRIPTION_NAME: `shared-worker-subscription`,
-    TOPIC_NAME: `book-process-queue`
+    TOPIC_NAME: `book-process-queue`,
   };
-  mocks.config.get = function (key) {
+  mocks.config.get = function(key) {
     return this[key];
   };
   mocks.subscription = {
-    on: sinon.stub()
+    on: sinon.stub(),
   };
   mocks.publisher = {
-    publish: sinon.stub().callsArgWith(1, null)
+    publish: sinon.stub().callsArgWith(1, null),
   };
   mocks.topic = {
     createSubscription: sinon.stub().callsArgWith(1, null, mocks.subscription),
-    publisher: sinon.stub().returns(mocks.publisher)
+    publisher: sinon.stub().returns(mocks.publisher),
   };
   mocks.pubsub = {
     createTopic: sinon.stub().callsArgWith(1, null, mocks.topic),
-    topic: sinon.stub().returns(mocks.topic)
+    topic: sinon.stub().returns(mocks.topic),
   };
   mocks.Pubsub = sinon.stub().returns(mocks.pubsub);
   mocks.logging = {
     info: sinon.stub(),
-    error: sinon.stub()
+    error: sinon.stub(),
   };
   // Load background.js with provided mocks
   background = proxyquire(`../lib/background`, {
     '@google-cloud/pubsub': mocks.Pubsub,
     '../config': mocks.config,
-    './logging': mocks.logging
+    './logging': mocks.logging,
   });
 
-  t.true(
-    mocks.Pubsub.calledOnce,
-    `Pubsub() should have been called once`
-  );
+  t.true(mocks.Pubsub.calledOnce, `Pubsub() should have been called once`);
 });
 
-test.serial.cb(`should subscribe and log message`, (t) => {
+test.serial.cb(`should subscribe and log message`, t => {
   // Setup
-  const testMessage = { test: `foo` };
+  const testMessage = {test: `foo`};
 
   // Run target functionality
   background.subscribe((err, message) => {
@@ -123,18 +120,18 @@ test.serial.cb(`should subscribe and log message`, (t) => {
   setTimeout(() => {
     mocks.subscription.on.firstCall.args[1]({
       data: JSON.stringify(testMessage),
-      ack: sinon.stub()
+      ack: sinon.stub(),
     });
   }, 10);
 });
 
-test.serial.cb(`should return topic error, if any`, (t) => {
+test.serial.cb(`should return topic error, if any`, t => {
   // Setup
   const testErrorMsg = `test error`;
   mocks.pubsub.createTopic = sinon.stub().callsArgWith(1, testErrorMsg);
 
   // Run target functionality
-  background.subscribe((data) => {
+  background.subscribe(data => {
     // Assertions
     t.true(
       mocks.pubsub.createTopic.calledOnce,
@@ -165,13 +162,13 @@ test.serial.cb(`should return topic error, if any`, (t) => {
   });
 });
 
-test.serial.cb(`should return subscription error, if any`, (t) => {
+test.serial.cb(`should return subscription error, if any`, t => {
   // Setup
   const testErrorMsg = `test error`;
   mocks.topic.createSubscription = sinon.stub().callsArgWith(1, testErrorMsg);
 
   // Run target functionality
-  background.subscribe((data) => {
+  background.subscribe(data => {
     // Assertions
     t.true(
       mocks.pubsub.createTopic.calledOnce,
@@ -211,7 +208,7 @@ test.serial.cb(`should return subscription error, if any`, (t) => {
   });
 });
 
-test.serial(`should queue a book and log message`, (t) => {
+test.serial(`should queue a book and log message`, t => {
   // Setup
   const testBookId = 1;
 
@@ -243,10 +240,12 @@ test.serial(`should queue a book and log message`, (t) => {
   );
   t.deepEqual(
     mocks.publisher.publish.firstCall.args[0],
-    Buffer.from(JSON.stringify({
-      action: `processBook`,
-      bookId: testBookId
-    })),
+    Buffer.from(
+      JSON.stringify({
+        action: `processBook`,
+        bookId: testBookId,
+      })
+    ),
     `publisher.publish() should have been called with the right arguments`
   );
   t.true(
@@ -260,11 +259,11 @@ test.serial(`should queue a book and log message`, (t) => {
   );
 });
 
-test.serial(`should queue a book and log message even if topic exists`, (t) => {
+test.serial(`should queue a book and log message even if topic exists`, t => {
   // Setup
   const testBookId = 1;
   mocks.pubsub.createTopic = sinon.stub().callsArgWith(1, {
-    code: 6
+    code: 6,
   });
 
   // Run target functionality
@@ -299,10 +298,12 @@ test.serial(`should queue a book and log message even if topic exists`, (t) => {
   );
   t.deepEqual(
     mocks.publisher.publish.firstCall.args[0],
-    Buffer.from(JSON.stringify({
-      action: `processBook`,
-      bookId: testBookId
-    })),
+    Buffer.from(
+      JSON.stringify({
+        action: `processBook`,
+        bookId: testBookId,
+      })
+    ),
     `publisher.publish() should have been called with the right arguments`
   );
   t.true(
@@ -316,7 +317,7 @@ test.serial(`should queue a book and log message even if topic exists`, (t) => {
   );
 });
 
-test.serial(`should log error if cannot get topic`, (t) => {
+test.serial(`should log error if cannot get topic`, t => {
   // Setup
   const testBookId = 1;
   const testErrorMsg = `test error`;
@@ -361,7 +362,7 @@ test.serial(`should log error if cannot get topic`, (t) => {
   );
 });
 
-test.serial(`should log error if cannot publish message`, (t) => {
+test.serial(`should log error if cannot publish message`, t => {
   // Setup
   const testBookId = 1;
   const testErrorMsg = `test error`;
diff --git a/optional-kubernetes-engine/test/cloudsql.test.js b/optional-kubernetes-engine/test/cloudsql.test.js
index 4e6ca3f5b..76fe26ea0 100644
--- a/optional-kubernetes-engine/test/cloudsql.test.js
+++ b/optional-kubernetes-engine/test/cloudsql.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `cloudsql` || process.env.TEST_CLOUDSQL) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `cloudsql` ||
+  process.env.TEST_CLOUDSQL
+) {
   require(`./_api-tests`)(`cloudsql`);
   require(`./_crud-tests`)(`cloudsql`);
 } else {
-  test(`Skipping Cloud SQL tests...`, (t) => t.pass());
+  test(`Skipping Cloud SQL tests...`, t => t.pass());
 }
diff --git a/optional-kubernetes-engine/test/datastore.test.js b/optional-kubernetes-engine/test/datastore.test.js
index 331966401..b99d115e9 100644
--- a/optional-kubernetes-engine/test/datastore.test.js
+++ b/optional-kubernetes-engine/test/datastore.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `datastore` || process.env.TEST_DATASTORE) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `datastore` ||
+  process.env.TEST_DATASTORE
+) {
   require(`./_api-tests`)(`datastore`);
   require(`./_crud-tests`)(`datastore`);
 } else {
-  test(`Skipping Cloud Datastore tests...`, (t) => t.pass());
+  test(`Skipping Cloud Datastore tests...`, t => t.pass());
 }
diff --git a/optional-kubernetes-engine/test/mongodb.test.js b/optional-kubernetes-engine/test/mongodb.test.js
index 626cb79de..11d342d3f 100644
--- a/optional-kubernetes-engine/test/mongodb.test.js
+++ b/optional-kubernetes-engine/test/mongodb.test.js
@@ -15,9 +15,12 @@
 
 const test = require(`ava`);
 
-if (require(`../config`).get(`DATA_BACKEND`) === `mongodb` || process.env.TEST_MONGODB) {
+if (
+  require(`../config`).get(`DATA_BACKEND`) === `mongodb` ||
+  process.env.TEST_MONGODB
+) {
   require(`./_api-tests`)(`mongodb`);
   require(`./_crud-tests`)(`mongodb`);
 } else {
-  test(`Skipping MongoDB tests...`, (t) => t.pass());
+  test(`Skipping MongoDB tests...`, t => t.pass());
 }
diff --git a/optional-kubernetes-engine/test/oauth2.test.js b/optional-kubernetes-engine/test/oauth2.test.js
index 2e08088b4..f711332c0 100644
--- a/optional-kubernetes-engine/test/oauth2.test.js
+++ b/optional-kubernetes-engine/test/oauth2.test.js
@@ -32,26 +32,26 @@ const getPassportMock = () => {
     authenticate: sinon.stub().returns((req, res, next) => {
       req.session.oauth2return = `/another/path`;
       next();
-    })
+    }),
   };
 };
 
-test.cb(`should start authorization`, (t) => {
+test.cb(`should start authorization`, t => {
   const passportMock = getPassportMock();
-  passportMock.authenticate = sinon.stub().returns((req, res, next) => {
+  passportMock.authenticate = sinon.stub().returns((req, res) => {
     t.is(req.session.oauth2return, `/some/path`);
     res.redirect(`/auth/google/callback?code=foo`);
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/login?return=%2Fsome%2Fpath`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/auth\/google\/callback\?code=foo/);
       t.true(passportMock.initialize.calledOnce);
@@ -61,29 +61,28 @@ test.cb(`should start authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test.cb(`should finish authorization`, (t) => {
+test.cb(`should finish authorization`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const app = proxyquire(`../app`, {
     passport: passportMock,
-    './lib/oauth2': oauth2
+    './lib/oauth2': oauth2,
   });
   request(app)
     .get(`/auth/google/callback?code=foo`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \/another\/path/);
       t.true(passportMock.initialize.calledOnce);
@@ -93,22 +92,21 @@ test.cb(`should finish authorization`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
       t.deepEqual(
         oauth2.extractProfile({
-          photos: [{ value: `image.jpg` }],
+          photos: [{value: `image.jpg`}],
           id: 1,
-          displayName: `Joe Developer`
+          displayName: `Joe Developer`,
         }),
         {
           id: 1,
           displayName: `Joe Developer`,
-          image: `image.jpg`
+          image: `image.jpg`,
         }
       );
       const serializeUser = passportMock.serializeUser.firstCall.args[0];
@@ -127,18 +125,18 @@ test.cb(`should finish authorization`, (t) => {
     .end(t.end);
 });
 
-test.cb(`should logout`, (t) => {
+test.cb(`should logout`, t => {
   const passportMock = getPassportMock();
   const app = proxyquire(`../app`, {
     passport: passportMock,
     './lib/oauth2': proxyquire(`../lib/oauth2`, {
-      passport: passportMock
-    })
+      passport: passportMock,
+    }),
   });
   request(app)
     .get(`/auth/logout`)
     .expect(302)
-    .expect((response) => {
+    .expect(response => {
       const text = response.text;
       t.regex(text, /Redirecting to \//);
       t.true(passportMock.initialize.calledOnce);
@@ -148,28 +146,27 @@ test.cb(`should logout`, (t) => {
       t.true(passportMock.deserializeUser.calledOnce);
       t.true(passportMock.authenticate.calledTwice);
       t.is(passportMock.authenticate.firstCall.args[0], `google`);
-      t.deepEqual(
-        passportMock.authenticate.firstCall.args[1],
-        { scope: [`email`, `profile`] }
-      );
+      t.deepEqual(passportMock.authenticate.firstCall.args[1], {
+        scope: [`email`, `profile`],
+      });
       t.is(passportMock.authenticate.secondCall.args[0], `google`);
       t.is(passportMock.authenticate.secondCall.args[1], undefined);
     })
     .end(t.end);
 });
 
-test(`should require authentication`, (t) => {
+test(`should require authentication`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {},
-    session: {}
+    session: {},
   };
   const res = {
-    redirect: sinon.stub()
+    redirect: sinon.stub(),
   };
   const next = sinon.stub();
   oauth2.required(req, res, next);
@@ -183,30 +180,32 @@ test(`should require authentication`, (t) => {
   t.is(res.redirect.firstCall.args[0], `/auth/login`);
 });
 
-test(`should add template variables`, (t) => {
+test(`should add template variables`, t => {
   const passportMock = getPassportMock();
   const oauth2 = proxyquire(`../lib/oauth2`, {
-    passport: passportMock
+    passport: passportMock,
   });
   const req = {
     originalUrl: `/some/path`,
     user: {
       id: 1,
       displayName: `Joe Developer`,
-      image: `image.jpg`
-    }
+      image: `image.jpg`,
+    },
   };
   const res = {
-    locals: {}
+    locals: {},
   };
   const next = sinon.stub();
   oauth2.template(req, res, next);
   t.true(next.calledOnce);
   t.is(res.locals.profile, req.user);
   t.is(
-    res.locals.login, `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.login,
+    `/auth/login?return=${encodeURIComponent(req.originalUrl)}`
   );
   t.is(
-    res.locals.logout, `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
+    res.locals.logout,
+    `/auth/logout?return=${encodeURIComponent(req.originalUrl)}`
   );
 });
diff --git a/optional-kubernetes-engine/test/worker.test.js b/optional-kubernetes-engine/test/worker.test.js
index c2c20ae28..934bd3d76 100644
--- a/optional-kubernetes-engine/test/worker.test.js
+++ b/optional-kubernetes-engine/test/worker.test.js
@@ -21,43 +21,45 @@ const test = require(`ava`);
 const utils = require(`@google-cloud/nodejs-repo-tools`);
 
 if (!process.env.SKIP_WORKER_HTTP_TESTS) {
-  test.serial.cb(`should return number of processed books`, (t) => {
-    utils.getRequest(testConfig)
+  test.serial.cb(`should return number of processed books`, t => {
+    utils
+      .getRequest(testConfig)
       .get(`/`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.regex(response.text, /This worker has processed/);
       })
       .end(t.end);
   });
 
-  test.serial.cb(`should do a health check`, (t) => {
-    utils.getRequest(testConfig)
+  test.serial.cb(`should do a health check`, t => {
+    utils
+      .getRequest(testConfig)
       .get(`/_ah/health`)
       .expect(200)
-      .expect((response) => {
+      .expect(response => {
         t.is(response.text, `ok`);
       })
       .end(t.end);
   });
 }
 
-test.serial.cb(`should process a book`, (t) => {
+test.serial.cb(`should process a book`, t => {
   const appConfig = require(`../config`);
   const loggingStub = {
     error: sinon.stub(),
     info: sinon.stub(),
-    warn: sinon.stub()
+    warn: sinon.stub(),
   };
   const stubs = {
     './lib/logging': loggingStub,
     '@google-cloud/trace-agent': {
       start: sinon.stub(),
-      '@noCallThru': true
+      '@noCallThru': true,
     },
     '@google-cloud/debug-agent': {
-      '@noCallThru': true
-    }
+      '@noCallThru': true,
+    },
   };
   stubs[`./books/model-${appConfig.get('DATA_BACKEND')}`] = {
     read: (bookId, cb) => {
@@ -65,12 +67,12 @@ test.serial.cb(`should process a book`, (t) => {
     },
     update: (bookId, book, queueBook, cb) => {
       cb();
-    }
+    },
   };
   const worker = proxyquire(path.join(__dirname, `../worker`), stubs).mocks;
   const processBook = worker.processBook;
 
-  processBook(1, (err, bookId) => {
+  processBook(1, err => {
     if (err) {
       return t.end(err);
     }
diff --git a/optional-kubernetes-engine/worker.js b/optional-kubernetes-engine/worker.js
index c043b07a5..18a9aaf4c 100644
--- a/optional-kubernetes-engine/worker.js
+++ b/optional-kubernetes-engine/worker.js
@@ -49,7 +49,7 @@ app.get('/', (req, res) => {
 
 app.use(logging.errorLogger);
 
-function subscribe () {
+function subscribe() {
   // Subscribe to Cloud Pub/Sub and receive messages to process books.
   // The subscription will continue to listen for messages until the process
   // is killed.
@@ -77,38 +77,41 @@ if (module === require.main) {
 
 // Processes a book by reading its existing data, attempting to find
 // more information, and updating the database with the new information.
-function processBook (bookId, callback) {
-  waterfall([
-    // Load the current data
-    (cb) => {
-      model.read(bookId, cb);
-    },
-    // Find the information from Google
-    findBookInfo,
-    // Save the updated data
-    (updated, cb) => {
-      model.update(updated.id, updated, false, cb);
-    }
-  ], (err) => {
-    if (err) {
-      logging.error(`Error occurred`, err);
+function processBook(bookId, callback) {
+  waterfall(
+    [
+      // Load the current data
+      cb => {
+        model.read(bookId, cb);
+      },
+      // Find the information from Google
+      findBookInfo,
+      // Save the updated data
+      (updated, cb) => {
+        model.update(updated.id, updated, false, cb);
+      },
+    ],
+    err => {
+      if (err) {
+        logging.error(`Error occurred`, err);
+        if (callback) {
+          callback(err);
+        }
+        return;
+      }
+      logging.info(`Updated book ${bookId}`);
+      bookCount += 1;
       if (callback) {
-        callback(err);
+        callback();
       }
-      return;
     }
-    logging.info(`Updated book ${bookId}`);
-    bookCount += 1;
-    if (callback) {
-      callback();
-    }
-  });
+  );
 }
 
 // Tries to find additional information about a book and updates
 // the book's data. Also uploads a cover image to Cloud Storage
 // if available.
-function findBookInfo (book, cb) {
+function findBookInfo(book, cb) {
   queryBooksApi(book.title, (err, r) => {
     if (!err && !r.items) {
       err = 'Not found';
@@ -136,21 +139,22 @@ function findBookInfo (book, cb) {
       top.volumeInfo.imageLinks.smallThumbnail;
     const imageName = `${book.id}.jpg`;
 
-    images.downloadAndUploadImage(
-      imageUrl, imageName, (err, publicUrl) => {
-        if (!err) {
-          book.imageUrl = publicUrl;
-        }
-        cb(null, book);
-      });
+    images.downloadAndUploadImage(imageUrl, imageName, (err, publicUrl) => {
+      if (!err) {
+        book.imageUrl = publicUrl;
+      }
+      cb(null, book);
+    });
   });
 }
 
 // Calls out to the Google Books API to get additional
 // information about a given book.
-function queryBooksApi (query, cb) {
+function queryBooksApi(query, cb) {
   request(
-    `https://www.googleapis.com/books/v1/volumes?q=${encodeURIComponent(query)}`,
+    `https://www.googleapis.com/books/v1/volumes?q=${encodeURIComponent(
+      query
+    )}`,
     (err, resp, body) => {
       if (err || resp.statusCode !== 200) {
         cb(err || `Response returned ${resp.statusCode}`);
@@ -164,7 +168,7 @@ function queryBooksApi (query, cb) {
 app.mocks = {
   processBook: processBook,
   findBookInfo: findBookInfo,
-  queryBooksApi: queryBooksApi
+  queryBooksApi: queryBooksApi,
 };
 
 // Proxyquire requires this *exact* line, hence the "app.mocks" above
diff --git a/package.json b/package.json
index 642908756..7e5a2141e 100644
--- a/package.json
+++ b/package.json
@@ -10,36 +10,8 @@
   "repository": "https://github.com/GoogleCloudPlatform/nodejs-getting-started",
   "main": "src/index.js",
   "private": true,
-  "semistandard": {
-    "globals": [
-      "after",
-      "afterEach",
-      "before",
-      "beforeEach",
-      "describe",
-      "it"
-    ]
-  },
-  "contributors": [
-    "Ace Nassri <anassri@google.com>",
-    "Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>",
-    "Allen Day <allenday@users.noreply.github.com>",
-    "André Cipriani Bandarra <andreban@gmail.com>",
-    "Dominik Staskiewicz <stadominik@gmail.com>",
-    "F. Hinkelmann <fhinkel@vt.edu>",
-    "Jason Dobry <jdobry@google.com>",
-    "Jon Wayne Parrott <jonwayne@google.com>",
-    "Justin Beckwith <justin.beckwith@gmail.com>",
-    "Michael McDonald <mcdonald@firebase.com>",
-    "Sean McBreen <seanmcb@google.com>",
-    "Steren <steren.giannini@gmail.com>",
-    "Steve Perry <steveperry-53@users.noreply.github.com>",
-    "chenyumic <chenyumic@google.com>",
-    "renovate[bot] <renovate[bot]@users.noreply.github.com>",
-    "shollyman <shollyman@google.com>"
-  ],
   "scripts": {
-    "lint": "semistandard \"**/*.js\"",
+    "lint": "eslint '**/*.js'",
     "ava": "ava -s -t 30s --tap \"**/!(datastore).test.js\"",
     "test": "npm run lint && npm run ava",
     "cover": "nyc --cache npm test; nyc report --reporter=html",
@@ -75,8 +47,12 @@
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.0.0",
     "ava": "^0.25.0",
+    "eslint": "^5.9.0",
+    "eslint-config-prettier": "^3.1.0",
+    "eslint-plugin-node": "^8.0.0",
+    "eslint-plugin-prettier": "^3.0.0",
+    "prettier": "^1.15.1",
     "proxyquire": "^2.0.0",
-    "semistandard": "^12.0.1",
     "sinon": "^7.0.0",
     "supertest": "^3.0.0"
   }
diff --git a/test/e2e.js b/test/e2e.js
index 89e589342..feccc664e 100644
--- a/test/e2e.js
+++ b/test/e2e.js
@@ -28,14 +28,14 @@ const steps = [
 
   // Worker steps
   require(`../6-pubsub/test/config.worker`),
-  require(`../7-gce/test/config.worker`)
+  require(`../7-gce/test/config.worker`),
 ];
 
-function tryToFinish (numTests, steps, done) {
+function tryToFinish(numTests, steps, done) {
   let doneCount = 0;
   let errCount = 0;
   let err = ``;
-  steps.forEach((config) => {
+  steps.forEach(config => {
     if (config.done) {
       doneCount++;
     }
@@ -52,7 +52,7 @@ function tryToFinish (numTests, steps, done) {
   if (doneCount === numTests) {
     console.log(`All tests complete!`);
   } else {
-    console.log(`${(numTests - doneCount)} deployments remaining...`);
+    console.log(`${numTests - doneCount} deployments remaining...`);
   }
 
   if (errCount) {
@@ -62,24 +62,33 @@ function tryToFinish (numTests, steps, done) {
   }
 }
 
-before((done) => {
+before(done => {
   // Delete existing versions
-  async.each(steps, (config, cb) => {
-    console.log(`Deletion queued for version ${config.test}...`);
-    utils.deleteVersion(config.test, config.cwd, () => {
-      console.log(`Deleted version ${config.test}!`);
-      cb();
-    });
-  }, done);
+  async.each(
+    steps,
+    (config, cb) => {
+      console.log(`Deletion queued for version ${config.test}...`);
+      utils.deleteVersion(config.test, config.cwd, () => {
+        console.log(`Deleted version ${config.test}!`);
+        cb();
+      });
+    },
+    done
+  );
 });
 
-it(`should deploy all steps`, (done) => {
+it(`should deploy all steps`, done => {
   let numTests = steps.length;
-  async.eachLimit(steps, 5, (config, cb) => {
-    utils.testDeploy(config, (err) => {
-      config.err = err;
-      config.done = true;
-      tryToFinish(numTests, steps, cb);
-    });
-  }, done);
+  async.eachLimit(
+    steps,
+    5,
+    (config, cb) => {
+      utils.testDeploy(config, err => {
+        config.err = err;
+        config.done = true;
+        tryToFinish(numTests, steps, cb);
+      });
+    },
+    done
+  );
 });