JSONServer.js

var http = require('http');
var app = http.createServer(function(req,res){
    res.setHeader('Content-Type', 'application/json');
    res.setHeader('Content-Length', JSON.stringify(json).length);
    res.setHeader('Access-Control-Allow-Origin', '*');
    res.setHeader('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
    res.setHeader('Access-Control-Allow-Methods', 'GET');
    res.write(JSON.stringify(json));
    res.end();
});
app.listen(4000);