public HttpResponseMessage GetBillingItem_ByID(string BillID, string token) { if (con.CheckIfTokenValid(token) != 10001 && con.IsUserInternal(token) == 1) { return(new HttpResponseMessage(HttpStatusCode.Unauthorized)); } try { return(new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(JsonConvert.SerializeObject(con.GetBillingItem_ByID(BillID), Formatting.None)) }); } catch (Exception ex) { ExceptionLog.LogException(ex); return(new HttpResponseMessage(HttpStatusCode.BadRequest)); } }