Learning Node.js for .NET Developers

Introducing Socket.IO

Socket.IO is a mature and well-established library with excellent cross-browser support. It aims to quickly and reliably establish a bidirectional communication channel in a cross-browser compatible way. It provides a consistent abstraction, based on idiomatic JavaScript events, for real-time communication between the client and the server over this channel. If you have ever used SignalR in .NET, you can think of Socket.IO as the JavaScript equivalent.

Implementing a chat room with Socket.IO

Let's implement a chat lobby for users of our application to talk to one another. First, we need to install Socket.IO:

> npm install --save socket.io

The server-side implementation for this is very simple. We just need to tell Socket.IO ...