CODE: Our First Simple Web App:

Add to your app.js file:

var express = require('express');

var app = express();

app.get("/", function(req, res){
 res.send("HELLO FROM OUR WEB APP!");
});

app.listen(8080, function () {
 console.log('App listening on port 8080!');
});

Remember to start the server up:

node app.js