WebSockets and Real-Time Systems
Learn how to build applications that update instantly without page refreshes. You'll understand WebSockets, Server-Sent Events, and real-time architecture patterns.
6 lessons
Real-Time Communication Concepts
Compare polling, long polling, SSE, and WebSockets to understand when each real-time approach makes sense.
WebSocket Fundamentals
Learn the WebSocket protocol, implement basic connections, and handle the connection lifecycle properly.
Building Chat Applications
Design and implement chat systems with rooms, presence indicators, and message handling using WebSockets.
Scaling Real-Time Systems
Learn how to scale WebSocket applications beyond a single server using pub/sub patterns and message brokers.
Real-Time Patterns
Learn common patterns for building real-time features like presence tracking, collaborative editing, and live updates.
WebSocket Security and Reliability
Secure your WebSocket connections with proper authentication and build reliable systems that handle disconnections gracefully.