SockIt · Quick Tutorial

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The plugin allows us to perform asynchronous network I/O in Javascript. To begin, load the plugin by calling

	var sockit = loadSockitPlugin();

This function is found in sockit.js, and returns the window.sockit object. Then we can start a (TCP) server listening on port 8080 (using IPv4):

	var server = sockit.createTcpServer(8080);

And start it listening on the given port:

	server.listen();

Since all of the network calls are asynchronous, the server needs to register a callback function in order to respond to events on the server. The API allows registering

	server.addEventListener('ondata', function(event) {
                var message = event.read();
		console.log(message);	// log the message
		event.send("world");	// respond to the client's message
	});

Now whenever the server receives data, the anonymous function provided will be invoked, so that the message received will be logged, and the server will reply with "world". Since the plugin is already loaded, to start a (TCP) client:

	var client = sockit.createTcpClient("localhost", 8080);

Now, we can listen for responses on the client connection by registering a callback on the client:

	client.addEventListener('ondata', function(event) {
		alert(event.read());
	});

Finally, we can send data from this client to trigger the data callback on our server:

	client.send("hello");

To see this example in action, click here.