Implementing chat functionality with WebSockets

Real-time chat functionality is a common feature in many modern web applications, enabling users to communicate instantly with each other. In this recipe, we’ll explore how to implement chat functionality using WebSockets in FastAPI applications.

By leveraging WebSockets, we will create a bidirectional communication channel between the server and multiple clients, allowing messages to be sent and received in real time.

Getting ready

To follow the recipe, you need to have a good understanding of WebSockets and know how to build a WebSocket endpoint using FastAPI.

Additionally, having some basic knowledge of HTML and JavaScript can help create simple web pages for the application. The recipe we’ll be using is the foundation of our chat application.

Also, we will use the jinja2 package to apply basic templating for the HTML page. Make sure to have it in your environment. If you didn’t install packages...