Basic WebSocket Ping-Pong Implementation

client.js

var socket = new WebSocket('ws://localhost:8080');

socket.addEventListener('error', function(message) {
	console.log('Wow guy, there was an eror.');
	console.log('Heres the message:', message);
});

socket.addEventListener('open', function(message) {
	console.log('Open now!!');
	console.log('Heres the message:', message);
	
	setTimeout(function() {
		sendMessage();
	}, 3000);

});

socket.addEventListener('close', function(message) {
	console.log('Socket is closed now.');
	console.log('Heres the message:', message);
});

socket.addEventListener('message', function(message) {
	console.log('A NEW MESSAGE!!');
	console.log('Heres the message:', message);
});


function sendMessage() {
	console.log('SENDING MESSAGE...');
	socket.send("Hello earthlings!");
}

server.js

const WebSocket = require('ws');
const server = new WebSocket.Server({ port: 8080 });


server.on('connection', function(client) {
	console.log('a new client is here!');

	client.on('close', function(ws) {
		console.log('User has left. :(');
	});


	client.on('message', function(message) {
		console.log('heres a message from client:', message);
	
		client.send(message);

	});
});