public IEnumerable <Album> GetAllAlbumsAndPhotos(int id) { var requestUrl = $"{ApiHelper.base_url}/albums?userId=" + id; var albums = RequestProcessor.Process <List <Album> >(requestUrl); // The photos endpoint doesn't support filter by albumId requestUrl = $"{ApiHelper.base_url}/photos"; var photos = RequestProcessor.Process <List <Photo> >(requestUrl); var combinedAlbumsAndPhotos = CalcService.CombineAlbumsAndPhotos(albums, photos); return(combinedAlbumsAndPhotos); }