Add defaults file for auto store

lib/template.session-defaults.js

@@ -0,0 +1,24 @@
+/*
+
+Provide default values for user session data. These are automatically added
+via the `autoStoreData` middleware. Values will only be added to the
+session if a value doesn't already exist. This may be useful for testing
+journeys where users are returning or logging in to an existing application.
+
+============================================================================
+
+Example usage:
+
+"full-name": "Sarah Philips",
+
+"options-chosen": [ "foo", "bar" ]
+
+============================================================================
+
+*/
+
+module.exports = {
+
+  // Insert values here
+
+}

lib/utils.js

@@ -252,12 +252,25 @@ var storeData = function (input, store) {
   }
 }
 
+// Get session default data from file
+let sessionDefaults = {}
+
+const defaultsFilePath = path.join(__dirname, '/../app/data/session-defaults.js')
+
+try {
+  sessionDefaults = require(defaultsFilePath)
+} catch (e) {
+  console.error('Could not load the session defaults from app/data/session-defaults.js. Might be a syntax error?')
+}
+
 // Middleware - store any data sent in session, and pass it to all views
 exports.autoStoreData = function (req, res, next) {
   if (!req.session.data) {
     req.session.data = {}
   }
 
+  req.session.data = Object.assign({}, sessionDefaults, req.session.data)
+
   storeData(req.body, req.session)
   storeData(req.query, req.session)
 

start.js

@@ -17,6 +17,21 @@ if (!envExists) {
   .pipe(fs.createWriteStream(path.join(__dirname, '/.env')))
 }
 
+// Create template session data defaults file if it doesn't exist
+const sessionDefaultsDirectory = path.join(__dirname, '/app/data')
+const sessionDefaultsFile = path.join(sessionDefaultsDirectory, '/session-defaults.js')
+const sessionDefaultsExists = fs.existsSync(sessionDefaultsFile)
+
+if (!sessionDefaultsExists) {
+  console.log('Creating template session data defaults file')
+  if (!fs.existsSync(sessionDefaultsDirectory)) {
+    fs.mkdirSync(sessionDefaultsDirectory)
+  }
+
+  fs.createReadStream(path.join(__dirname, '/lib/template.session-defaults.js'))
+  .pipe(fs.createWriteStream(sessionDefaultsFile))
+}
+
 // Run gulp
 const spawn = require('cross-spawn')