Node Cookbook

Creating a WebSocket server

For this task, we will use the non-core websocket module to create a pure WebSocket server that will receive and respond to WebSocket requests from the browser.

Getting ready

We'll create a new folder for our project which will hold two files: server.js and client.html. server.js. They provide the server-side websocket functionality and serve up the client.html file. For the server-side WebSocket functionality, we also need to install the websocket module:

npm install websocket

Note

For more information on the websocket module, see https://www.github.com/Worlize/WebSocket-Node.

How to do it...

A WebSocket is an HTTP upgrade. As such, WebSocket servers run on top of HTTP servers. So we'll require the http and websocket