Designing a Real-Time Chat System at Scale
Most developers underestimate how difficult messaging systems actually are. A basic chat demo with WebSockets can be built in a few hours. A production-grade messaging platform like WhatsApp, Telegram
Most developers underestimate how difficult messaging systems actually are. A basic chat demo with WebSockets can be built in a few hours. A production-grade messaging platform like WhatsApp, Telegram
What you'll learn: Why "just send a WebSocket event" fails in production The exact failure modes and their root causes Concrete patterns for delivery semantics, ordering, and deduplication An oper
