client.js

var io = require('socket.io-client');
var socket = io('http://localhost:3000');

socket.on('connect', function () {
	console.log('got connected');
	cli();
	
});

// ************************ functions ******************************************
function cli () {
	process.stdin.resume();
  	process.stdin.setEncoding('utf8');
  	var util = require('util');

  	process.stdin.on('data', function (text) {
	    console.log('received data:', util.inspect(text));
	    if (text === 'quit\n') {
	      done();
	    }
	    else {
	    	socket.emit()
	    }
  	});

	function done() {
    	console.log('Now that process.stdin is paused, there is nothing more to do.');
    	process.exit();
	}
}