WebRTC through WebSocket signaling servers
Signaling is a crucial activity to establish any kind of network-based communication. It lets the endpoints share the session description and media information before setting up the path to actually exchange media. For a simple WebRTC client, there are JavaScript-based WebSocket servers that can provide such signaling in a permanent, full duplex, real-time manner. Node.js is one such server.
Node.js
Node.js is an asynchronous, server-side JavaScript server powered by Chrome's V8 JS engine. There are many WebSocket libraries, such as Socket.io and SockJS, that can run over it. Why are they used? They are used because the WebSocket server will do the WebSocket signaling between WebRTC clients and the server ...
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