WebSocket Definition
WebSocket is a communication protocol that provides full-duplex communication channels over a single TCP connection. It is designed to be implemented in web browsers and web servers but can be used by any client or server application. WebSocket protocol enables interaction between a web browser (or other client application) and a web server with lower overheads, facilitating real-time data transfer from and to the server.
WebSocket Key Points
- WebSocket is a protocol that provides full-duplex communication channels over a single TCP connection.
- It is designed for real-time applications where servers need to push data to clients instantly.
- WebSocket protocol is independent of HTTP, but it is designed to work over HTTP ports 80 and 443.
- It enables interaction between a web browser and a web server with lower overheads.
- WebSocket is often used in applications that require real-time data transfer, such as chat applications, online games, and real-time trading systems.
What is WebSocket?
WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. The WebSocket protocol was standardized by the IETF as RFC 6455 in 2011, and the WebSocket API in Web IDL is being standardized by the W3C.
Why is WebSocket used?
WebSocket is used when real-time data needs to be sent to and from a server to a client, such as in a chat application, online game, or real-time trading system. WebSocket reduces latency. For example, unlike with HTTP/HTTPS, the WebSocket protocol does not require a request to be made by a client in order for the server to respond. This makes WebSocket a great solution for applications that require real-time data exchange.
When is WebSocket used?
WebSocket is used when a web application needs real-time bidirectional communication. It is often used in advanced, interactive, real-time web applications and multiplayer games. It is also used in IoT (Internet of Things) projects where real-time communication is crucial.
Where is WebSocket used?
WebSocket is used in web development, particularly in web applications that require real-time, two-way communication between the client and the server. This includes, but is not limited to, chat applications, online multiplayer games, live sports updates, real-time trading, and collaborative editing tools.
How does WebSocket work?
WebSocket works by first establishing a regular HTTP connection with the server and then upgrading it to a persistent, full-duplex WebSocket connection. This connection stays open, allowing real-time data transfer in both directions. The server can send data to the client at any time, and the client can do the same. This is a significant improvement over the traditional HTTP request/response model, where a new connection must be established for each piece of data to be transferred.
