title: How can a gRPC server make calls to REST endpoints
body: <p>I'm currently new to gRPC technology and have been reading up on it.</p>
  
  <p>My current understanding is that <code>gRPC</code> is just another protocol just like how <code>REST</code> is one. Now lets say I spin up a gRPC server that I want clients to consume, but in that gRPC server I'd like to be able to get information from outside consumer RESTful Apis, (for example <a href="https://developer.riotgames.com/api-methods/" rel="nofollow noreferrer">https://developer.riotgames.com/api-methods/</a>) is that still possible? </p>