Only handle session once for a http2 stream?

[wmertens]

Since a http2 stream can have many requests on the same TCP connection from the same client, it might be interesting to key the session on the stream connection instead.

This way, there would be no overhead when a single stream does 100 requests.

[SerayaEryn]

This is a good idea. I guess that would allow to skip the unsign() of the sessionId on every request.

Would you like to open a PR?

[wmertens]

I'll keep it in mind, I was exploring fastify.

The req has a .stream member for h2 connections, and that has a .session member, which could be used with a WeakMap to look up sessions, and it emits a 'close' event when the session drops. So probably it won't be hard to do.