[ Version ( since = "2.50" ) ]
public async WebsocketConnection websocket_connect_async (Message msg, string? origin, string[]? protocols, Cancellable? cancellable) throws Error
Asynchronously creates a WebsocketConnection to communicate with a remote server.
All necessary WebSocket-related headers will be added to msg, and it will then be sent and asynchronously processed normally
(including handling of redirection and HTTP authentication).
If the server returns "101 Switching Protocols", then msg's status code and response headers will be updated, and then the
WebSocket handshake will be completed. On success, websocket_connect_async.end will return a new
WebsocketConnection. On failure it will return a Error
.
If the server returns a status other than "101 Switching Protocols", then msg will contain the complete response headers and
body from the server's response, and websocket_connect_async.end will return
NOT_WEBSOCKET.
| this |
a Session |
| msg |
Message indicating the WebSocket server to connect to |
| origin |
origin of the connection |
| protocols |
a |
| cancellable |
a Cancellable |
| callback |
the callback to invoke |
| user_data |
data for |