In this blog post, we will show you how to build a real-time chat application using Socket.io and React. Socket.io is a JavaScript library that enables real-time, bi-directional communication between web clients and servers. React is a JavaScript library for building user interfaces. By combining these two technologies, we will be able to create a chat app that can handle multiple users and messages being sent in real-time. We will walk you through the process of setting up the server-side and client-side components, and show you how to use Socket.io to send and receive messages in real-time.