Cross-browser Compatibility
SockJS provides a consistent WebSocket-like API that works across all modern browsers, including fallback options for older browsers that don't support WebSockets.
Fallback Options
SockJS automatically uses the best-available transport method, such as JSONP, XHR streaming, or XHR polling, ensuring connectivity even in challenging network environments.
Reliability
By offering multiple transport methods, SockJS provides reliable real-time communication even when WebSocket connections might be unstable or unsupported.
Ease of Use
SockJS abstracts the complexity of managing various transport protocols, allowing developers to focus on implementing application logic rather than handling connection details.
Server Support
SockJS is supported by several server-side implementations in different programming languages, enabling flexibility in choosing backend technologies.
SockJS is a library that mimics the native WebSockets API. Additionally, it will fall back to HTTP whenever a WebSocket fails to connect, or if the browser being used doesn’t support WebSockets. Like WS, SockJS requires a server counterpart; its maintainers provide both a JavaScript client library and a Node.js server library. - Source: dev.to / over 1 year ago
SockJS is a JavaScript library that provides communication between the client and the server in a way similar to the native WebSockets API. SockJS functions with a server counterpart in the form of sockjs-node and SockJS-client, a JavaScript client library. - Source: dev.to / over 3 years ago
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