GetSourceIP retrieves the IP from the X-Forwarded-For, X-Real-IP and RFC7239 Forwarded headers (in that order), falls back to r.RemoteAddr when all else fails.

GetSourceScheme retrieves the scheme from the X-Forwarded-Proto and RFC7239 Forwarded headers (in that order).

NewForwarder creates an instance of Forwarder based on the provided list of configuration options.

TraceReqHandlerFunc logs request/response headers and body.

Forwarder forwards all incoming HTTP requests to configured transport.