title: Webflux postgresql
body: <p>How should I implement postgresql in Webflux?<br>
  I would like to do it with <code>ReactiveCrudRepository</code>, but JPA isn't reactive... I want to store users and SSH public and private keys. I've read that MongoDB transactions aren't as reliable as postgresql(Correct me if I am wrong). Thats why I want to use postgresql.</p>
  
  <p>But what is the best way to use Postgresql in webflux? I would like to use JPA repositories(or other) and not write full queries, but still be able to program reactively.</p>