server.js

var express = require('express'),
	mongoose = require('mongoose'),
	path = require('path'),
	fs = require('fs'),
	consolidate = require('consolidate'),
	app = module.exports = express();

mongoose.connect('mongodb://localhost/DYEG-Tool');

//cors middleware
var allowCrossDomain = 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', 'Origin, X-Requested-With, Content-Type, Accept');

    next();
};

app.set('showStackError', true);

// Prettify HTML
app.locals.pretty = true;

// cache=memory or swig dies in NODE_ENV=production
app.locals.cache = 'memory';

app.use(express.compress({
    filter: function(req, res) {
        return (/json|text|javascript|css/).test(res.getHeader('Content-Type'));
    },
    // Levels are specified in a range of 0 to 9, where-as 0 is
    // no compression and 9 is best compression, but slowest
    level: 9
}));

app.engine('html', consolidate['swig']);

// set .html as the default extension
app.set('view engine', 'html');

   // Set views path, template engine and default layout
app.set('views', path.join(__dirname, 'views'));

app.enable('jsonp callback');

app.configure(function(){
    app.use(allowCrossDomain);
	app.use(express.cookieParser());
	app.use(express.urlencoded());
    app.use(express.json());
    app.use(express.methodOverride());
    app.use(app.router);
    app.use(express.favicon());
    app.use(express.static( path.join(__dirname, 'public')));


    // Assume "not found" in the error msgs is a 404. this is somewhat
    // silly, but valid, you can do whatever you like, set properties,
    // use instanceof etc.
    app.use(function(err, req, res, next) {
        // Treat as 404
        if (~err.message.indexOf('not found')) return next();

        // Log it
        console.error(err.stack);

        // Error page
        res.status(500).render('500', {
            error: err.stack
        });
    });

    // Assume 404 since no middleware responded
    app.use(function(req, res) {
        res.status(404).render('404', {
            url: req.originalUrl,
            error: 'Not found'
        });
    });
});

var models_path = __dirname + '/models';
var walk = function(path) {
    fs.readdirSync(path).forEach(function(file) {
        var newPath = path + '/' + file;
        var stat = fs.statSync(newPath);
        if (stat.isFile()) {
            if (/(.*)\.(js$|coffee$)/.test(file)) {
                require(newPath);
            }
        } else if (stat.isDirectory()) {
            walk(newPath);
        }
    });
};
walk(models_path);

var routes_path = __dirname + '/routes';
var walk = function(path) {
    fs.readdirSync(path).forEach(function(file) {
        var newPath = path + '/' + file;
        var stat = fs.statSync(newPath);
        if (stat.isFile()) {
            if (/(.*)\.(js$|coffee$)/.test(file)) {
                require(newPath)(app);
            }
        // We skip the app/routes/middlewares directory as it is meant to be
        // used and shared by routes as further middlewares and is not a 
        // route by itself
        } else if (stat.isDirectory() && file !== 'middlewares') {
            walk(newPath);
        }
    });
};
walk(routes_path);

app.listen(3000);
console.log('express server listening on port 3000');