title: Retrieve response object after UI action?
body: <p>so I've created several service tests where I validate the response object, normally using the requests library or http library to send a POST request for example.</p>
  
  <p>This time however I'm doing an end-to-end test.  Through the UI progressing through a workflow, one stage involves uploading a document, behind the scenes this will call a separate service, the response of which will contain some information that could be useful to me for further verification.</p>
  
  <p>Is there a way to merge these?  After the UI action can I 'listen' for the response object somehow?  </p>
  
  <p>I do NOT wish to call the endpoint directly as I want to prove the workflow is as intended, the endpoint is verified directly in service level tests already.</p>