WebSocket API
The WebSocket API is a web technology that provides full-duplex, bidirectional communication channels over a single TCP connection, enabling real-time data exchange between a client (typically a web browser) and a server. It allows for persistent connections that remain open, unlike traditional HTTP requests which are stateless and short-lived. This makes it ideal for applications requiring low-latency updates, such as live chats, online gaming, or financial tickers.
Developers should use the WebSocket API when building applications that require real-time, two-way communication, such as collaborative editing tools, live notifications, or multiplayer games, as it reduces latency and overhead compared to polling with HTTP. It is particularly valuable in scenarios where frequent, fast updates are critical, like stock trading platforms or IoT device monitoring, as it avoids the inefficiencies of repeated HTTP requests.