public ActionResult GetByProductId([FromQuery] string id) { var apiRep = new APIResponse(); var rate = _rateService.GetByProductId(id); apiRep.Error = false; if (rate == null) { apiRep.Error = true; apiRep.Data = null; return(Ok(apiRep)); } apiRep.Error = false; apiRep.Data = rate; return(Ok(apiRep)); }