public async Task <IEnumerable <ItemDto> > GetItemsForAuction(int id)
        {
            var auction = await AuctionFacade.GetAuctionById(id);

            if (auction == null)
            {
                throw new HttpResponseException(HttpStatusCode.NotFound);
            }
            var items = await AuctionFacade.GetItemsForAuction(auction);

            foreach (var item in items)
            {
                item.Id = 0;
            }
            return(items);
        }