Simple node.js HTTP webserver

simple-web-server-node-js-with-graphdat.js

require('graphdat'); // require the graphdat module first, always!
var http = require("http"); // require the HTTP module

//
// Create the simple HTTP Server
// ### function createServer (requestCallback)
// #### @requestCallback {function} function is called on every request made.
// Create a Simple HTTP server.  
//   The request parameter will hold all request parameters
//   The response parameter will hold all of the repsonse values sent to the client
//
http.createServer(function (request, response) {

  // The 'end' event is called when the client has sent all of it's data 
  // and is waiting for response.
  request.on("end", function () {
      // Write the headers to the response.
      // - first parameter is 200, is HTTP status code for success
      // - second parameter holds header fields in object
      //     we are sending plain text, so Content-Type should be text/plain
      // We are going to wrap it in a setTimeout, just so thing happen a little
      // slower and we can see it popup on our graphs
      setTimeout(function() {
        response.writeHead(200, {
         'Content-Type': 'text/plain'
        });
        
        // Send data and end response.
        response.end('Hello World, this page is being profiled with graphdat!');
      }, 150 + (Math.random() * 300) );

   });
// Listen on the 8080 port.
}).listen(8080);
console.log('Server running at http://127.0.0.1:8080/');