public HttpResponseMessage GetReview(long id) { ReviewPersistenceService ReviewPersistenceService = new ReviewPersistenceService(); Review Review = ReviewPersistenceService.GetReview(id); HttpResponseMessage response; if (Review == null) { response = Request.CreateResponse(HttpStatusCode.NotFound, "Review not found."); return(response); } return(Request.CreateResponse(HttpStatusCode.OK, Review)); }