WebSocket

• A WebSocket is a bi-directional, message-based data transport that can be used in the browser.
• It is a very simple protocol, basically a thin wrapper over TCP. Can be implemented in one day.
• There is not much overhead compared to other protocols, the message framing is very small.

The WebSocket protocol is described by RFC 6455.

URLs

The URL for a WebSocket server can be specified as follows.

• wss://example.com/ws for connections over TLS
• ws://example.com/ws for non-TLS connections

Implementations

• I wrote a simple WebSocket implementation in Rust here.

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