Session close/release support

[coyzeng]

Session can not be closed by server side.

[tmaxmax]

Hi there and thank you for opening this issue!

If you are using an sse.Provider the subscription is automatically ended when the context passed to sse.Provider.Subscribe is canceled.

Other than that a session is just a wrapper around the net/http request and response. The SSE stream itself is over when the request handler closes.

If you want to send a custom close message you can just use sse.Session.Send after the sse.Provider closed the subscription. To control when that happens, use a context with cancellation.

By giving me some more insight into what exactly you're trying to achieve and possibly some code samples I could assist you better. Let me know how I could help you further!