title: RESTful API POST call request without a body
body: <p>I want to create a new call in my API that links two already created resources together. Therefore, I don't need to pass any json entities in the post body I just need the resources IDs which I am passing in the URL. Is that a wrong practice? so basically my request now is only a simple path {cid}/projects/{projectID}/subcontractors/{subcontractorID}
  and in the post call method I extract the resources IDs from the path and I link them. The response is only either pass or fail {"success":true}. Is that a wrong practice? Is there a better way of doing this?</p>