Upload image direct to blob storage using SAS and the Storage Client library for Windows CTP

gistfile1.cs

        ...

        using Microsoft.WindowsAzure.Storage.Auth;
        using Microsoft.WindowsAzure.Storage.Blob;               

        ...

        private async void OnTakePhotoClick(object sender, RoutedEventArgs e)
        {
            //Take photo or video
            CameraCaptureUI cameraCapture = new CameraCaptureUI();
            StorageFile media = await cameraCapture.CaptureFileAsync(CameraCaptureUIMode.PhotoOrVideo);

            if (media != null)
            {
                //add todo item to trigger insert operation which returns item.SAS
                var todoItem = new TodoItem()
                {
                    ContainerName = "mypics",
                    ResourceName = media.Name,
                    Text = "NA",
                };
                await todoTable.InsertAsync(todoItem);
                items.Add(todoItem);

                //Upload image direct to blob storage using SAS and the Storage Client library for Windows CTP
                //Get a stream of the image just taken
                using (var fileStream = await media.OpenStreamForReadAsync())
                {
                    var sasUri = new Uri(todoItem.SAS);

                    //Our credential for the upload is our SAS token
                    StorageCredentials cred = new StorageCredentials(sasUri.Query.Substring(1));
 
                    CloudBlobContainer container = new CloudBlobContainer(new Uri(string.Format("https://{0}/{1}", sasUri.Host, todoItem.ContainerName)), cred);
                    CloudBlockBlob blobFromSASCredential = container.GetBlockBlobReference(todoItem.ResourceName);
                    await blobFromSASCredential.UploadFromStreamAsync(fileStream.AsInputStream());
                }
            }
        }