server.js

var express = require("express");
var bodyParser = require("body-parser");
var morgan = require("morgan");
var config = require("./config");
var mongoose = require("mongoose");
var cors = require('cors');

var app = express();

/**
 * Using CORS to reduce CROSS Origine.
 */
app.use(cors());

/**
 * Connecting to MongoDB using Mongoose.
 */
mongoose.connect(config.database, function (err) {
    if (err) {
        console.error(err);
    } else {
        console.log("Connected to database");
    }
});

app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.json());
app.use(morgan('dev'));

var api = require('./app/routes/api')(app, express);
app.use('/api', api);

app.listen(config.port, function (err) {
    if (err) {
        console.log(err);
    } else {
        console.log("Listening on port 3000");
    }
});