http_websocket_handshake

This library provides lower-level opening-handshake predicates in the http_websocket_handshake object that is used by other libraries. Requires a backend supporting unbound integer arithmetic.

API documentation

Open the ../../apis/library_index.html#http_websocket_handshake link in a web browser.

Loading

To load the full library, load the loader.lgt file:

| ?- logtalk_load(http_websocket_handshake(loader)).

Testing

To test this library, load the tester.lgt file:

| ?- logtalk_load(http_websocket_handshake(tester)).

Current scope

The current implementation provides two predicates:

  • websocket_opening_key/1 for generating canonical base64-encoded opening keys.

  • websocket_accept/2 for computing canonical Sec-WebSocket-Accept values from valid opening keys.

Current workflow

Use the websocket_opening_key/1 and websocket_accept/2 predicates only when you need the raw opening-handshake values without opening a connection.