I'm confused. Mitmproxy shows me request/response bodies and lets me edit and replay requests. Those seem like fundamental features (Fiddler, Burp, mitmproxy al

I'm confused. Mitmproxy shows me request/response bodies and lets me edit and replay requests. Those seem like fundamental features (Fiddler, Burp, mitmproxy all seem to have them). I don't see how this is done with nginx reverse_proxying and logging, or is that coming in part 2 or 3 maybe?