A WebSocket is a communication protocol that enables persistent, full-duplex connections between a client and a server. Unlike traditional HTTP, WebSockets allow continuous, real-time data exchange without repeated requests. This makes them ideal for chat applications, live dashboards, and collaborative tools. WebSockets begin as an HTTP handshake and then upgrade the connection to a bidirectional channel.
Why it matters
WebSockets significantly reduce latency and overhead for real-time applications. They enable fast, interactive experiences by maintaining an always-open channel rather than relying on polling.
Examples
Live chat applications, multiplayer games, or stock price streaming. Lessons like Real-Time Communication With WebSockets explain the underlying model.