9 articles
Build real-time bidirectional applications with WebSockets in Node.js using ws and Socket.io. Covers connection management, rooms, authentication, and scaling patterns with TypeScript.
Master Server-Sent Events for server-to-client streaming in Node.js with TypeScript. Covers event format, reconnection, authentication, and LLM token streaming patterns used in 2026.
Practical guide to real-time web applications in 2026 using WebSockets with Socket.io, Server-Sent Events, and managed services like Pusher. Covers chat, notifications, and live dashboards.
LiveKit provides WebRTC infrastructure for voice agents and video. Combine with OpenAI Realtime API to build voice AI agents that listen and respond in real time.
Multiple users editing simultaneously creates conflicts. CRDTs solve it with conflict-free merging. Learn Yjs, persistence, and scaling collaboration backends.
Redis Streams offer persistence, consumer groups, and ordering without Kafka''s operational burden. Perfect for real-time activity feeds and notifications at scale.
SSE is simpler than WebSockets: HTTP, auto-reconnect, one-way streaming. Perfect for dashboards, AI responses, and server→client updates. Learn when to use it.
Supabase handles authentication, realtime subscriptions, and row-level security. Learn production patterns: custom JWT claims, RLS policies, Edge Functions, and multi-environment deployments.
Socket.io doesn''t scale. Learn raw WebSocket patterns with ws, horizontal scaling via Redis pub/sub, and why Cloudflare Durable Objects might be your next architecture.