Django Channels & WebSockets in 2026 — Real-Time Without Tears
Practical Django Channels: consumer design, auth in WebSocket connections, channel layers via Redis, scaling, and where to reach for ASGI alternatives.
WebSockets
FastAPI WebSockets and Real-Time in 2026 — Production Patterns
Production WebSocket patterns in FastAPI: connection management, auth, scaling beyond one process, broadcast via Redis Pub/Sub or NATS, and the gotchas that bite.
Design WhatsApp / Chat — A System Design Walkthrough
End-to-end system design for a WhatsApp / Telegram-style chat. WebSocket fleet, message storage, delivery receipts, online presence, group chat fanout, end-to-end encryption, and the operational realities of running it at scale.
SSE vs WebSockets in 2026 — Streaming AI Apps, Chat, and Real-Time UIs
A practical comparison of Server-Sent Events and WebSockets in 2026. The protocol differences, AI token streaming, chat with cancellation, code in FastAPI, Hono, and Axum, scaling and CDN/proxy behavior, and a clear decision rule.