title: How to wait for multiple Flux and Mono publishers to complete concurrently
body: <p>How to chain Flux &amp; Mono Publishers?</p>
  <p>I want to chain them both and send response. Basically, execute all asynchronously.</p>
  <p>Here, I use zip for Mono &amp; Flux for executing all Mono publishers and Flux publishers.</p>
  <pre><code>List&lt;Mono&lt;?&gt;&gt; monoPubs = new ArrayList&lt;&gt;();
  Mono.zip(monoPubs, mred -&gt; result);
  
  List&lt;Flux&lt;?&gt;&gt; fluxPubs = new ArrayList&lt;&gt;();
  Flux.zip(fluxPubs, fres -&gt; result);
  </code></pre>