public async Task <IEnumerable <GroupDto> > GetGroups()
 {
     _logger.Log(LoggingLevel.Info, "GetGroups started");
     try
     {
         return(await _filterManager.GetGroups());
     }
     catch (Exception ex)
     {
         _logger.Log(LoggingLevel.Error, "There was an error : ", ex);
     }
     return(new List <GroupDto>());
 }