How to track a specific TCP connection in Axum?

[alexpyattaev]

Summary

I'm trying to track a particular TCP connection across calls to the endpoints in axum. I specifically want a per-connection request handling in my app (I am 100% certain that the compliant HTTP client will have keep-alive set). I know there is a mechanism to track remote port and IP that is discussed in #43, but I would much prefer having an actual connection tracking primitive (if there is one) rather than global state in the app tracking specific socket addresses and a mess of timeouts to clean that map. I imagine deep inside hyper actually tracks the specific TCP connections, so would appreciate if someone knows how to get to that info. Thanks!

axum version

0.7.7

[jplatte]

See serve-with-hyper for an example of how to drive the TCP accept loop yourself, where you can then add whatever connection tracking code you want.

[alexpyattaev]

Oh that is exactly what I was looking for, thank you!