NodeJS vanilla handling requests

index.js

const http = require('http');
const url = require('url');
// const querystring = require('querystring');

let server = http.createServer(function(req, res) {
	let isMatched = false;
	console.log("Got a new Request ", req.method, " => ", req.url);

	// Query string parameter
	let urlParts = url.parse(req.url, true);
	console.log('Request parsed path ', urlParts.pathname);
	console.log('Request parsed query parameters ', urlParts.query);

	if(req.method === 'GET' && req.url === '/foo') return res.end('bar');
	if(req.method === 'PATCH' && req.url === '/foo') return res.end(`PATCH bar`);
	if(req.method === 'POST' && req.url === '/foo') {
		isMatched = true;
		let data = [];
		req.on('data', (chunk) => data.push(chunk));
		req.on('end', (d) => {
			console.log('end data ', d);
			data = Buffer.concat(data).toString();
			return res.end(`POST bar ${data}`);
		})
	}
	if(req.method === 'GET' && req.url === '/bar') return res.end('foo');
	if(req.method === 'GET' && req.url === '/suresh') return res.end('ramesh');
	if(req.method === 'GET' && req.url === '/ramesh') return res.end('suresh');
	if(req.method === 'GET' && req.url === '/hello') return res.end('hello world');

	if(!isMatched){
		res.writeHead(404);
		res.end('Resource not found')
	}
});

server.on('connection', (socket)=> console.log(' ** CONNECTION ** ', socket.address()));
server.on('request', ()=> console.log(' ** REQUESTED ** '));
// server.on('close', ()=> console.log(' ** CLOSED ** '));

server.on('error', (e) => {
  if (e.code === 'EADDRINUSE') {
    console.log('Address in use, please check if another process is using the port and retry...');
  } else if (e.code === 'EACCES') {
  	console.log('There seems to be a access permission or privilege issue with user account used to run the service, please check and try again..!');
  }
});

server.on('listening', () => { console.log('Server is listening on ', server.address())});

server.listen(process.env.PORT || 9090);