index.js


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var express = require('express');
var mongoose = require('mongoose');
var bodyParser = require('body-parser');
var methodOverride = require('method-override');

// create express application
var app = express();
var port = 3000;

// setup REST middleware
app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.json());
app.use(methodOverride('X-HTTP-Method-Override'));

// CORS support
app.use(function(req, res, next) {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
    res.header('Access-Control-Allow-Headers', 'Content-Type');
    next();
});

// hello
app.use('/hello', function(req, res, next) {
    res.send('Hello World');
    next();
});

// connect to mongodb
mongoose.connect('mongodb://localhost/meanapp');
mongoose.connection.once('open', function() {

    app.models = require('./models/index.js');

    console.log("listening on port " + port);
    app.listen(port);
});