title: Webflux request/response logging
body: <p>I believe it is a standard to log request and response in order to track down any issues reported by users and also to integrate it with tools like Splunk.</p>
  <p>I've found 2 approaches so far, but none of them is really solving this issue properly:</p>
  <ol>
  <li><a href="https://stackoverflow.com/a/64217998/4950459">https://stackoverflow.com/a/64217998/4950459</a></li>
  <li><a href="https://stackoverflow.com/a/47931511/4950459">https://stackoverflow.com/a/47931511/4950459</a></li>
  </ol>
  <p>Someone even wrote it is against reactive stack: <a href="https://stackoverflow.com/a/45280764/4950459">https://stackoverflow.com/a/45280764/4950459</a></p>
  <p>So I have questions:</p>
  <ol>
  <li>Isn't there any recommended way of doing it by Spring team?</li>
  <li>If logging in webflux is against reactive stack then how should we actually log request/response?</li>
  <li>If Webflux is not a proper place to log request/response then where should we catch those information from? Nginx could possibly log it with a request id - but is it a proper way of solving this issue?</li>
  </ol>