index.js

var Response = require('joule-node-response');

exports.handler = function(event, context) {
  var response = new Response();
  response.setContext(context);
  var name = event.name || 'World';
  var greeting = 'Hello, ' + name + '.';

  var result = {
    "message": greeting
  };
  
  response.send(result);
};