server.js

// server.js
  
// modules =================================================
var express = require('express');
var app = express();
var bodyParser = require('body-parser');
var methodOverride = require('method-override');
var mongoose = require('mongoose');
var path = require('path');

// configuration ===========================================

// config files
var config = require('./config/config.js').get(process.env.NODE_ENV);

// set our port
var port = process.env.PORT || config.port;

// connect to our mongoDB database 
// (uncomment after you enter in your own credentials in config/db.js)
mongoose.connect(config.database); 
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function () {
  console.log('Connected!');
});
// get all data/stuff of the body (POST) parameters
// parse application/json 
app.use(bodyParser.json());

// parse application/vnd.api+json as json
app.use(bodyParser.json({
  type: 'application/vnd.api+json'
}));

// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({
  extended: true
}));

// override with the X-HTTP-Method-Override header in the request. simulate DELETE/PUT
app.use(methodOverride('X-HTTP-Method-Override'));

// set the static files location /public/img will be /img for users
app.use(express.static(__dirname + '/public'));

//Set the area of the views and enable the template engine
app.set('views', path.join(__dirname, '/public/views'));
app.set('view engine', 'html');
app.set('layout', 'index');
app.engine('html', require('hogan-express'));


// routes ==================================================
require('./app/routes')(app); // configure our routes

// start app ===============================================
// startup our app at http://localhost:8080
app.listen(port);

// shoutout to the user                     
console.log('Running your mean app at 127.0.0.1:' + port + ' in ' + process.env.NODE_ENV + ' mode.');

// expose app           
exports = module.exports = app;