Running a simple server using Node.Js : Simplest Node Application

First of all to follow this simple tutorial you should have installed Node.Js .

Lets create a simple HTTP server with Node.Js

• Open a text editor as your preference
• Insert this code snippet and save it as hello.js (as a JavaScript File)
  
  

  
  var http=require('http'); // add the http module
  
  
  var myServer=http.createServer(function(request,response){
  
   response.writeHead(200,{"Content-Type":"text/plain"});
  
   response.write("Hello World"); //writing a response to String
  
   response.end();
  
  });//create server
  
  myServer.listen(3000); //assign a port to listen
  
  
  
  // Console will print the message
  
  console.log('listening at port 3000');
  
  
  



• Open a Node.Js command prompt and go to directory where you saved your "hello.js" file
• Run your simple server with "node hello.js" command.
• You will see a message "listening on port 3000" if there is nothing wrong
• Finally open browser and test your HTTP server with entering URL "http://localhost:3000/"