http module

HTTP Module

now lest discuss what http module is built-in module called HTTP allows Nodejs to transfer data over the Hyper Text transfer protocol

---

to include the http module use the require () method :

var http =require ('http');
//create a server object :
http.createServer(function(req,res){
    res.write('hello World!' );
    res.end();

}).listen(8080);

---

To create an HTTP server, call the http.createServer() function. It accepts a single argument, a callback function, that will be called on each HTTP request received by the server. This request callback receives, as arguments, the request and response objects

Read The Query String

var http = require('http');
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/html'});
  res.write(req.url);
  res.end();
}).listen(8080); 

---

let's summarize this journey

1.An HTTP client, like a web browser,initiates an HTTP.

2.Node accepts the connection,and incoming request data is given to the HTTP server.

3.The HTTP server parses up to the end of the HTTP headers and then hands control over to the request callback.

4.The request callback performs application logic, in this case responding immediately with the text “Hello World”.

5.The request is sent back through the HTTP server, which formats a proper HTTP response for the client.

---