node-http-server.js

const http = require('http');

http.createServer((req, res) => {
  cosnt data = [];
  
  req.on('data', chunk => data.push(chunk));
  req.on('end', () => {
  try {
    console.log(JSON.parse(data));
	catch(err) {
	  console.log(data.toString());
	}
  });
}).listen(4000);