public ActionResult AddingReview([FromBody] ReviewRequest requestData) { if (requestData.ProductId == 0 || requestData.Rating == 0 || requestData.Comment == null || string.IsNullOrWhiteSpace(requestData.Email)) { throw new Exception("request parameter incorrect."); } var data = _reviewService.AddingReview(requestData); if (data.ContainsKey(false)) { throw new Exception(data.Values.FirstOrDefault()); } return(Ok(data.Keys.FirstOrDefault())); }