adding a service to say hello

Author: jon-lewis

helloworld/.gitignore

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+node_modules
+.serverless

helloworld/README.md

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+To run:
+
+```
+npm install
+serverless offline
+```

helloworld/handler.js

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+'use strict';
+
+module.exports.endpoint = (event, context, callback) => {
+  const response = {
+    statusCode: 200,
+    body: JSON.stringify({
+      message: `Hello, the current time is ${new Date().toTimeString()}.`,
+    }),
+  };
+
+  callback(null, response);
+};