If your server is really just one service on one port, I would just run mitmproxy as a reverse proxy and point your client to that (https://docs.mitmproxy.org/s

If your server is really just one service on one port, I would just run mitmproxy as a reverse proxy and point your client to that (https://docs.mitmproxy.org/stable/concepts-modes/ https://docs.mitmproxy.org/stable/concepts-modes/). If there are multiple services, having it running as a regular proxy sounds best to me.