// ######################### cloud Create User example #########################
 case 'usercreate':
     $create_user_parameters = "admin," . $openqrm_user . "," . $openqrm_password . "," . $request_fields['cr_username'] . "," . $request_fields['cr_userpassword'] . "," . $request_fields['cr_useremail'] . ",,,,,,,,";
     try {
         $res = $client->CloudUserCreate($create_user_parameters);
     } catch (Exception $e) {
         $res = $e->getMessage();
     }
     echo "Created Cloud User ID : {$res}<br>";
     break;
     // ######################### cloud Remove User example #####################
 // ######################### cloud Remove User example #####################
 case 'userremove':
     $remove_user_parameters = "admin," . $openqrm_user . "," . $openqrm_password . "," . $request_fields['cr_username'];
     try {
         $res = $client->CloudUserRemove($remove_user_parameters);
     } catch (Exception $e) {
         $res = $e->getMessage();
     }
     echo "Removed Cloud User {$remove_user_parameters} : {$res}<br>";
     break;
     // ######################### cloud User setCCUs example ####################
 // ######################### cloud User setCCUs example ####################
 case 'setCCUs':
     $clouduser_name = $request_fields['cr_username'];
     $clouduser_ccus = $request_fields['cr_ccunits'];
     $setccus_parameters = "admin," . $openqrm_user . "," . $openqrm_password . "," . $clouduser_name . "," . $clouduser_ccus;
     try {
         $res = $client->CloudUserSetCCUs($setccus_parameters);
     } catch (Exception $e) {
         $res = $e->getMessage();