app.js

var http = require('http');
var url = require('url');
var fs = require('fs');

// Read the HTML file
var htmlFile;
fs.readFile('./response.html', function(err, data) {
    if (err) {
        throw err;
    }
    htmlFile = data;
});

http.createServer(function (request, response) {
    response.writeHead(200, {'Content-Type': 'text/html'});
    response.end(htmlFile);
}).listen(3000, "127.0.0.1");
console.log('server running');