internal static async Task DownloadFileAsync(this Flickr flickr, StorageFolder folder, string fileName, SizeCollection sizes, CancellationToken cancellationToken)
{
var url = sizes.OrderByDescending(s => s.Label == "Original" ? int.MaxValue : s.Width * s.Height).First().Source;
var request = WebRequest.CreateHttp(url);
using (cancellationToken.Register(request.Abort, false))
using (var response = await request.GetResponseAsync())
using (var responseStream = response.GetResponseStream())
using (var outStream = await folder.OpenStreamForWriteAsync(fileName, CreationCollisionOption.ReplaceExisting))
{
await responseStream.CopyToAsync(outStream);
}
}
