Sample Express JS Application

var express = require('express');
var bodyParser = require('body-parser')
var app = express();
 
app.use(bodyParser.urlencoded({     // to support URL-encoded bodies
  extended: true
}))
 
app.get('/', function (req, res) {
  res.send('Hello World!');
});
 
var server = app.listen(3000, function () {
 
  var host = server.address().address;
  var port = server.address().port;
 
  console.log('Example app listening at http://%s:%s', host, port);
 
});