gistfile1.js

// We want a tcp socket
var socket = require('net').socket.tcp;

// Instantiate a new socket listening on port 8010 at 'localhost'
var sock = new socket(8010, 'localhost')

// Listen out for incoming connections
socket.listen(function(stream) {
   
   // Log the connection
   console.log('connection from address: ' + stream.endpoint());   

   // Set no delay
   stream.delay = false;
   stream.timeout = 0;
   stream.encoding = 'utf8';

   // Means data is buffered when written and flush() needs to be called to send the data
   stream.autoflush = false;

   // Listen for data
   stream.events.bind('data', function(data) {

      // Log the incoming message
      console.log('message received from address: ' + stream.endpoint() + ' message: ' + data);

      // Write separate messages
      stream.write('thank you!');
      stream.write('very much!');

      // Flush the message
      stream.flush();

      // stream.close(true) would close the stream and flush!
   });
});