node http net socket middleman

server-middleman.js

const app = require('http').createServer((req, res) => { res.end((new Date()).toISOString()); })

const listener = require('net').createServer(connection => {
  connection.once('data', buffer => {
    connection.pause();
    console.log(buffer.toString('utf8'));
    app.emit('connection', connection);
    connection.emit('data', buffer);
    connection.resume();
  });
});

listener.listen(4000);