title: ArangoDB- Can I use foxx to make an audit service to log all changes
body: <p>On a high level perspective, I would like to log all changes of a collection.</p>
  
  <p>My first approach is to use another foxx service:
  Let's say I have foxx service A. In A, I perform delete operation. I would like to log the data of the deleted one together with other timestamp info into another audit collection using foxx service B. A would call B every time it deletes something.</p>
  
  <p>My questions is:</p>
  
  <ol>
  <li>Is it a standard/possible approach? Or does arango have other internal audit method?</li>
  <li>Is there any example of how to call other services from 1 service?</li>
  </ol>