Ktor Tutorial #15: WebSockets — Real-Time Communication
HTTP is a request-response protocol. The client sends a request, the server responds, and the connection closes. For real-time features like chat, notifications, or live updates, you need WebSockets. In this tutorial, you will build a chat server with rooms, broadcasting, and heartbeat/ping-pong. You will learn how WebSockets work in Ktor and how to manage connections. What Are WebSockets? WebSockets provide a persistent, two-way connection between client and server. Both sides can send messages at any time without waiting for a request. ...