We have seen how the client works and how we can send the data to the server and receive it from server. Now we will see how we can make our own server code handle the messages.
Using modern web technology, we will explore the implementation of the WebSocket server using Node.js. Node.js is a very friendly, lightweight, and easy-to-use platform. So let's see how we can make our own WebSockets server.
The Node.js server gives us a lot of flexibility to create our own server. There are many library packages available via NPM. We will be using a library created by Einar Otto Stangvik which basically handles general mechanisms, such as upgrading the HTTP protocol and others. It is a very robust, clean, and lightweight library.
Now, to set up the server you must have Node.js installed on your machine. If you don't have it installed, then go ahead and check out the website of Node.js (https://nodejs.org/), read the documentation, and install it. Refer to the...