server.js

var express = require('express');
var app = express();

// set the port of our application
// process.env.PORT lets the port be set by Heroku
var port = process.env.PORT || 8080;

// set the view engine to ejs
app.set('view engine', 'ejs');

// make express look in the public directory for assets (css/js/img)
app.use(express.static(__dirname + '/public'));

// set the home page route
app.get('/', function(req, res) {

	// ejs render automatically looks in the views folder
	//res.render('index');
	res.json({ fulfillmentText: 'This is a sample response from your webhook!' });
});

app.post('/', function(req, res){
	res.json({ fulfillmentText: 'This is a sample response from your webhook!' });
});
app.listen(port, function() {
	console.log('Our app is running on http://localhost:' + port);
});

exports.helloHttp = function helloHttp (request, response) {
	response.json({ fulfillmentText: 'This is a sample response from your webhook!' });
  };