code: func (api UsersAPI) GetAuthorization(w http.ResponseWriter, r *http.Request) {
  	username := mux.Vars(r)["username"]
  	grantedTo := mux.Vars(r)["grantedTo"]
  
  	userMgr := user.NewManager(r)
  
  	authorization, err := userMgr.GetAuthorization(username, grantedTo)
  	if handleServerError(w, "Getting authorization by user", err) {
  		return
  	}
  	if authorization == nil {
  		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
  		return
  	}
  	w.Header().Set("Content-type", "application/json")
  	json.NewEncoder(w).Encode(authorization)
  }
docs: // GetAuthorization is the handler for GET /users/{username}/authorizations/{grantedTo}
  // Get the authorization for a specific organization.