public IActionResult GetCitiesForZipCode(int zipCode) { logger.LogInformation(nameof(GetCitiesForZipCode), zipCode); Task <IEnumerable <KeyValuePair <string, int> > > result = weatherService.GetCitiesIdsForZipCode(zipCode); if (result.Result.Any()) { return(Ok(result)); } return(NotFound()); }