WebSocketühendusse

WebSocketühendusse is a protocol that provides full-duplex communication channels over a single TCP connection. Unlike traditional HTTP requests, which are stateless and typically involve a client initiating a request and a server responding, WebSockets allow for persistent, bidirectional communication. This means both the client and the server can send data to each other at any time, without the need for a new connection to be established for each message.

The WebSocket protocol was standardized by the Internet Engineering Task Force (IETF) in RFC 6455. It begins with an HTTP handshake, where the client sends an Upgrade request to the server. If the server supports WebSockets, it responds with a 101 Switching Protocols status, and the connection is then upgraded from HTTP to the WebSocket protocol. After this handshake, the connection remains open, enabling real-time data transfer.

This real-time capability makes WebSockets ideal for applications that require low latency and frequent updates, such as online gaming, live chat applications, collaborative editing tools, and financial data streaming. It significantly reduces the overhead associated with repeatedly opening and closing HTTP connections, leading to improved performance and efficiency. WebSockets are supported by most modern web browsers and are a crucial technology for building interactive web experiences.