bi-directional streams ?

[benoitc]

I have the idea to implement bi-directional streams over http2:

1. the client send a request with headers, and methods
2. The server respond with headers and wait from the client
   3 we enter then in the following loop until the client or the server decide to stop:
   3.a) the client send a chunk, wait for the server
   3.b) the server reply wioth a chun and then wait for the client
3. The server finish with a terminal trailers

Wile it can be hackish to do it with the current implement, is it even possible? Any guidance would be appreciated.

[benoitc]

here is an example in go probably more clear about what i meant:

golang/go#13444

[benoitc]

any news about it?

[benoitc]

no answer from the maintainer since awhile. closing the issue then.

[tsloughter]

I think this might actually be supported mostly by setting send_end_stream to false.

[tsloughter]

Hm, seems on the client side I need to do more than that. It looks like it only will give response data if the stream is closed.

[tsloughter]

Looks like just a modification to how the headers are handled by the client fixes this up. Right now if the client gets headers back before it sends a body it'll error, if instead in the stream open state the headers are handled and remain the open state it can then start receiving and sending data back and forth.