I would probably go for rust over c if the only reason for c is "os level". But either way, this is for requests from "real" http clients, eg: web browsers? Pre

I would probably go for rust over c if the only reason for c is "os level". But either way, this is for requests from "real" http clients, eg: web browsers? Presumably you're already "trapped" at a pretty high level, like tls, http/2 etc? Otoh, if low level is what you want, maybe look at: https://2ton.com.au/rwasa/ https://2ton.com.au/rwasa/ and/or the library it is built on. On the other hand, if you just want to log headers to a file, caddy can do that in a few lines: https://caddyserver.com/docs/caddyfile/directives/log https://caddyserver.com/docs/caddyfile/directives/log AFAIK it can't log request bodies out of the box (like the content of a POST).