public IActionResult GetByOwner(long ownerId, long groupId) { try { var lists = _listService.GetAllByOwner(ownerId, groupId); var json = JsonConvert.SerializeObject(lists, Formatting.None, new JsonSerializerSettings() { ReferenceLoopHandling = ReferenceLoopHandling.Ignore }); return(Ok(json)); } catch (Exception ex) { return(BadRequest(ex.Message)); } }