SockJS Web Sockets

SockJS is a JavaScript library (for browsers) that provides a WebSocket-like object. SockJS gives you a coherent, cross-browser, Javascript API which creates a low latency, full duplex, cross-domain communication channel between the browser and the web server.

#What is SockJS?

SockJS is a client-side JavaScript library that provides a WebSocket-like object for browsers that do not support the WebSocket protocol. It is built to provide a low-latency, full-duplex communication channel between the browser and the web server.

#SockJS Key Features

Most recognizable SockJS features include:

  • Provides fallbacks for browsers that don’t support WebSocket.
  • Offers various transports such as xhr-streaming, xhr-polling, and iframe-based transports for reliable communication.
  • Supports streaming and polling based transports to improve compatibility with various environments.
  • Can be used with any web server that supports the WebSocket protocol.
  • Provides WebSocket-like APIs to make communication between client and server easier.
  • Supports message fragmentation and reassembly.

#SockJS Use-Cases

Some of the SockJS use-cases are:

  • Real-time applications such as chat applications, online gaming, and collaborative editing.
  • Websites with slow or unreliable networks that require fallback mechanisms.
  • Applications that need to establish a low-latency, full-duplex communication channel between the client and the server.
  • Projects that require WebSocket-like functionality in browsers that do not support the WebSocket protocol.

#SockJS Summary

SockJS is a client-side JavaScript library that provides a WebSocket-like object for browsers that do not support the WebSocket protocol. It offers fallbacks for browsers that don’t support WebSocket, various transports, WebSocket-like APIs, and support for message fragmentation and reassembly. SockJS is useful for real-time applications, websites with slow networks, and projects that require WebSocket-like functionality in unsupported browsers.

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