Architecting Fault-Tolerant Real-Time Chat with WebRTC and WebSocket Fallbacks

This tutorial addresses the critical challenge of building real-time communication systems that remain reliable across diverse network conditions and device types. By combining WebRTC's low-latency peer-to-peer capabilities with WebSocket fallbacks, developers can architect chat systems that degrade gracefully when direct connections fail. The focus on observability, idempotent processing, and resilience patterns provides production-ready solutions for handling message delivery, retry logic, and network failures.