What does hyper use to parse HTTP2 headers?

[thesw4rm]

I'm aware that httparse is used to parse for HTTP 1.0 and HTTP 1.1. Is there a custom parser implemented for HTTP2, or is it a separate project? httparse does not seem to support HTTP2 for whatever reason.

[seanmonstar]

hyper internally uses h2 as a lower-level HTTP/2 implementation.

[thesw4rm]

Didn't see this reply. Any chance you can direct me to where the parsing is done for requests and responses? If not, I'll try to find it myself, but any direction you can give is helpful. Thanks!

[olix0r]

You probably want to start with the headers frame type.

[thesw4rm]

This is a great starting point. Thank you!

[thesw4rm]

Follow up question. Is there a way to use load_hpack with pub mods to decode headers? Trying to avoid exposing the decoder itself if it isn't necessary. I'm using unstable feature pack where frame mod is public. https://github.com/hyperium/h2/blob/f6aa3be6719270cd7b4094ee1940751b5f4ec88e/src/frame/headers.rs#L208.

Also, if I can figure this out a bit more, I can try to separate the parsing logic and make it its own repo so it can be used in the future on its own., What do you think?