Socket chat

const server = require('net').createServer();

const sockets = {};
let counter = 0;

server.on('connection', socket => {
  socket.id = counter++;

  console.log('Client connected!');  
  socket.write('Please type your name: ');

  socket.on('data', data => {
    if(!sockets[socket.id]) {
      socket.name = data.toString().trim();
      socket.write(`Welcome ${socket.name}!\n`);
      sockets[socket.id] = socket;
      return;
    }

    Object.entries(sockets).forEach(([key, cs]) => {
      const text = socket.id == key ? 'me' : socket.name;
      cs.write(`${text}: `);
      cs.write(data);
    });
  });

  socket.on('end', () => {
    console.log(`Cliente ${socket.name} desconected!`);
    delete sockets[socket.id];
  })
});

server.listen(3000, () =>
  console.log('Server listening at port 3000'));