public async Task <IHttpActionResult> GetItem(int id)
        {
            Item existing = await itemDB.GetSingleOrDefaultWhere(o => o.ID == id);

            if (existing == null)
            {
                return(NotFound());
            }
            else
            {
                ItemResponse resp = new ItemResponse();
                resp.ParseExisting(existing);
                return(Ok(resp));
            }
        }