Express server for fakeEnd

server.js

var express = require('express'),
	fs = require('fs'),
	app = express(),
	port = 8080;

function getInt (num) {
	return parseInt(num, 10);
}

function readJSONFile (path, callback) {
	fs.readFile(__dirname + '/' + path, function(err, data) {
		if (err) callback(err);
		callback(null, JSON.parse(data));
	});
}

app.get('/mem/services/rest/modules', function(req, res) {
	readJSONFile('modules', function (err, json) {
		if (err) res.send(404, err);
		res.json(json);
	});
});

app.get('/mem/services/rest/modules/:id', function(req, res){
	var index;
	function hasId(module, idx) {
		if (module.id === getInt(req.params.id)) {
			index = idx;
			return true;
		}
	}

	readJSONFile('modules', function (err, json) {
		if (err) res.send(404, err);
		json.some(hasId);
		if (index) res.json(json[index]);
		res.send(404);
	});
});

app.listen(port);
console.log('Express server listening to', port);