public async Task <IActionResult> GetTrafficForRegionAsync(long regionCode) { var region = _regionService.GetRegionByCode(regionCode); if (region == null) { return(NotFound()); } var traffic = await _trafficService.GetTrafficForRegionAsync(region); if (traffic == null) { return(NotFound()); } return(Ok(DtoBuilder.GetTrafficWithRegionDto(traffic, region))); }