tararoutray · September 17, 2021 15:35
diff --git a/nodestarterapp_app_v2.js b/nodestarterapp_app_v2.js
 // This file contains the same code of the previous gist.
 // with a little bit enhancement.

 const http = require('http');

 const server = http.createServer((request, response) => {
 	
 	// The feature to handle the request and send back response
 	// starts from here.
 	
 	// Let's declare a constant with name "url". It will store the 
 	// URL of the page that the user is accessing.
 	
 	const url = request.url;
 	
 	// Here we check if the requested URL is the root of the
 	// domain or "/". If so, it will send a customised response.
 	
 	if (url === '/') {
 		
 		// set up the Headers to be sent back.
 		
 		response.setHeader('Content-Type', 'text/html');
 		
 		// Write the String data to be send back. response.write() method has three
 		// parameters. The first one is "chunk", the second one is "character encoding",
 		// and the third one is "callback" function.
 		
 		// Chunk can be a string or a buffer. If chunk is a string, the second parameter 
 		// specifies how to encode it into a byte stream. Callback will be called when 
 		// this chunk of data is flushed.

 		// The first time response.write() is called, it will send the buffered header 
 		// information and the first chunk of the body to the client. The second time 
 		// response.write() is called, Node.js assumes data will be streamed, and sends 
 		// the new data separately. That is, the response is buffered up to the first 
 		// chunk of the body.
 		
 		response.write('<html>', 'utf8', () => {});
 		response.write('<head><title>Node App</title></head>', 'utf8', () => {});
 		response.write('<body><h1>Welcome to Node.js!</h1></body>', 'utf8', () => {});
 		response.write('</html>', 'utf8', () => {});
 		
 		// The res.end() function is used to end the response process. The application
 		// will send back the response from here. It will not proceed further to check
 		// other codes after it.
 		
 		response.end();
 	}
 });

 server.listen(3000);
	// This file contains the same code of the previous gist.
	// with a little bit enhancement.

	const http = require('http');

	const server = http.createServer((request, response) => {

	// The feature to handle the request and send back response
	// starts from here.

	// Let's declare a constant with name "url". It will store the
	// URL of the page that the user is accessing.

	const url = request.url;

	// Here we check if the requested URL is the root of the
	// domain or "/". If so, it will send a customised response.

	if (url === '/') {

	// set up the Headers to be sent back.

	response.setHeader('Content-Type', 'text/html');

	// Write the String data to be send back. response.write() method has three
	// parameters. The first one is "chunk", the second one is "character encoding",
	// and the third one is "callback" function.

	// Chunk can be a string or a buffer. If chunk is a string, the second parameter
	// specifies how to encode it into a byte stream. Callback will be called when
	// this chunk of data is flushed.

	// The first time response.write() is called, it will send the buffered header
	// information and the first chunk of the body to the client. The second time
	// response.write() is called, Node.js assumes data will be streamed, and sends
	// the new data separately. That is, the response is buffered up to the first
	// chunk of the body.

	response.write('<html>', 'utf8', () => {});
	response.write('<head><title>Node App</title></head>', 'utf8', () => {});
	response.write('<body><h1>Welcome to Node.js!</h1></body>', 'utf8', () => {});
	response.write('</html>', 'utf8', () => {});

	// The res.end() function is used to end the response process. The application
	// will send back the response from here. It will not proceed further to check
	// other codes after it.

	response.end();
	}
	});

	server.listen(3000);