Re: Gun and HTTP2: HEADER and DATA frames in different packets
Loïc Hoguin <[email protected]>
| Newsgroups | gmane.comp.lang.erlang.general |
|---|---|
| Organization | Nine Nines |
| Message-ID | <[email protected]> |
On 13/09/2020 11:13, Stefano Bertuola wrote:
> Hi all.
>
> When sending an HTTP2 request using Gun:
>
> {ok, ConnPid} = gun:open({127,0,0,1}, 8088, #{protocols => [http2]}).
> gun:post(ConnPid, "/test", [ {<<"content-type">>,
> <<"application/json">>} ], <<"{\"test\": \"test\" }">>).
>
> the HEADER and DATA frames are sent in different HTTPs packets:
> [...]
> Why Gun is acting in this way? How to get both HEADER and DATA in the
> same HTTP2 request?
They're distinct send calls because HTTP/2 has flow control for the DATA
frames and the body for the request may be queued partially or fully.
> I can confirm the two frames (HEADER and DATA) are
> sent in two different HTTP2 messages by Gun. In fact,
> when receiving the 1st one containing the HEADER,
> Cowboy is complaining the body is missing.
What's the exact error though? Cowboy is tested with Gun so if there's a
client that should work it's this one. :-)
--
Loïc Hoguin
https://ninenines.eu