public async Task <ActionResult> GetBills(int id)
        {
            ExpenseService.Core.Model.CoreBills bills = await _repo.GetBillByIdAsync(id);

            var resource = new ApiModel.ApiBills
            {
                Id           = bills.Id,
                BillDate     = bills.BillDate,
                Cost         = bills.Cost,
                Location     = bills.Location,
                PurchaseName = bills.PurchaseName,
                Quantity     = bills.Quantity,
                UserId       = bills.UserId
                               //CurrentUser = ApiMapper.MapUserApi(bills.CurrentUser)
            };

            if (resource == null)
            {
                return(NotFound());
            }

            return(Ok(resource));
        }