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Re: HTTP 2.0 selects forever

From: Tatsuhiro Tsujikawa <>
Date: Thu, 26 Sep 2013 23:08:34 +0900

On Thu, Sep 26, 2013 at 5:30 PM, Gisle Vanem <> wrote:

> "Daniel Stenberg" <> wrote:
> I have a few local commits that make it slightly better but recently I've
>> hit a little obstacle in nghttp2's API that I've been communicating with
>> Tatsuhiro about how to solve[1]. I hope to be able to get something done on
>> that soon so that I can get a first HTTP2 download transfer done properly.
> Thanks for the clarification. But I'm a bit confused about the
> relationship between HTTP2.0 and SPDY. Does NgHTTp2 require
> libspdylay for libcurl do be usable with e.g. big players like YouTube and
> Google?

HTTP/2.0 work was stared based on SPDY, but now they are completely
different protocol.
nghttp2 only supports HTTP/2.0; no SPDY support.

nghttp2 and spdylay have similar APIs, so if libcurl successfully adds
support in its core, then it will be relatively easy to add SPDY support
spdylay if SPDY support is important.
But SPDY will disappear when HTTP/2.0 is standardized, so there may be
less incentive to invest the time to support SPDY now, but YMMV.

Best regards,

Tatsuhiro Tsujikawa

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Received on 2013-09-26