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WebSocket

Knowledge Base/Glossary: "WebSocket is a communication protocol that provides full-duplex, bidirectional communication channels over a single TCP connection. Unlike the traditional request-response model of HTTP, WebSocket allows for real-time, interactive communication be..."

WebSocket is a communication protocol that provides full-duplex, bidirectional communication channels over a single TCP connection. Unlike the traditional request-response model of HTTP, WebSocket allows for real-time, interactive communication between a client (usually a web browser) and a server. It is designed to overcome some of the limitations of HTTP, which primarily operates on a request-response basis and is stateLESS. WebSocket maintains an open connection between the client and server, enabling data to be sent in both directions at any time without the need for repeated handshakes.

WebSocket is particularly valuable for applications that require low-latency and real-time interactions, such as chat applications, online gaming, collaborative editing tools, financial trading platforms, and live streaming services. It is efficient for scenarios where frequent updates or immediate responses are necessary because it eliminates the need for continuous polling, where clients repeatedly send requests to check for updates, which can be resource-intensive and lead to delays.

WebSocket operates through a simple handshake process initiated by the client, followed by an open channel for communication. Once the connection is established, data can be sent back and forth without the overhead of headers and handshakes present in HTTP. This efficiency makes WebSocket an excellent choice for scenarios where minimizing latency and conserving bandwidth are critical.

One of the key benefits of WebSocket is its ability to support real-time updates and notifications. In a chat application, for example, messages can be pushed from the server to the client as soon as they are available, allowing for instantaneous message delivery without the need for periodic polling. Similarly, in online gaming, WebSocket enables players to receive real-time game state updates, ensuring a more responsive and immersive gaming experience.

In summary, WebSocket is a communication protocol that enables full-duplex, bidirectional communication over a single TCP connection. It is widely used in web development for building real-time and interactive applications where low-latency, immediate updates, and efficient communication are essential. WebSocket has revolutionized how developers create web applications by providing a powerful and efficient mechanism for real-time data exchange between clients and servers.

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