pub fn accept<B>(
request: &mut Request<B>,
) -> Result<(Response<Empty<Bytes>>, impl Future<Output = Result<UpgradedIo, WebSocketError>>), WebSocketError>Expand description
Accept a WebSocket upgrade, requiring the DEFAULT_SUBPROTOCOL (h2ts).
Echoes h2ts when the client offered it; a client that doesn’t offer h2ts
is rejected with WebSocketError::UnsupportedSubprotocol (send
rejection_response back as a 400).
Use accept_with to select a different offered subprotocol, or
accept_with_options with allow_implicit_codec to accept any codec.
On success, returns the 101 Switching Protocols response to send back
immediately, plus a future that resolves to the upgraded connection as a byte
stream (UpgradedIo). Drive the response through your framework; spawn the
future and hand the stream to bridge or
serve_h2. Control frames (ping/close) are handled
downstream by wslay.
The outer HTTP/1 connection must be served with upgrades enabled
(http1::Builder::serve_connection(..).with_upgrades()).