Is there a way to handle the `close` frame received via a websocket connection? Or is listening to e...

# ktor

[Giuliopime]

Is there a way to handle the close frame received via a websocket connection?
Or is listening to exception the only way to do that (not ideal since I don't listen to frames I just emit them, maybe the ClosedSendChannelException works for that but it's not mentioned in the docs)

[Aleksei Tirman [JB]]

You can either catch the CancellationException and ClosedSendChannelException in a WebSockets handler or use raw WebSockets to manually send and receive the close frames.

[Giuliopime]

When do these exceptions get thrown precisely?

[Aleksei Tirman [JB]]

The CancellationException is thrown when the channel for outgoing frames is cancelled after receiving a close frame.

[Aleksei Tirman [JB]]

https://github.com/ktorio/ktor/blob/1cf4dc84a88a125205c0c41a25df153489798e35/ktor-[…]m/src/io/ktor/http/cio/websocket/DefaultWebSocketSessionImpl.kt

[Giuliopime]

Uh ok thanks