Instance Method

URLSession:webSocketTask:didOpenWithProtocol:

Tells the delegate that the WebSocket task successfully negotiated the handshake with the endpoint, indicating the negotiated protocol.

Declaration

- (void)URLSession:(NSURLSession *)session webSocketTask:(NSURLSessionWebSocketTask *)webSocketTask didOpenWithProtocol:(NSString *)protocol;

Parameters

session: The session of the WebSocket task that opened.
webSocketTask: The WebSocket task that opened.
protocol: The protocol picked during the handshake phase. This parameter is nil if the server did not pick a protocol, or if the client did not advertise protocols when creating the task.

Discussion

If the handshake fails, the task doesn’t call this delegate method.

See Also

Handling WebSocket Lifecycle Events

- URLSession:webSocketTask:didCloseWithCode:reason:

Tells the delegate that the WebSocket task received a close frame from the server endpoint, optionally including a close code and reason from the server.