I know how to save Streams, but I want to take that stream and create thumbnails and other sized images, but I don't know how to save a byte[] to the Azure Blob Storage.
This is what I'm doing now to save the Stream:
// Retrieve reference to a blob named "myblob".
CloudBlockBlob _blockBlob = container.GetBlockBlobReference("SampleImage.jpg");
// upload from Stream object during file upload
blockBlob.UploadFromStream(stream);
// But what about pushing a byte[] array? I want to thumbnail and do some image manipulation
This used to be in the Storage Client library (version 1.7 for sure) - but they removed it in version 2.0
"All upload and download methods are now stream based, the FromFile, ByteArray, Text overloads have been removed."
http://blogs.msdn.com/b/windowsazurestorage/archive/2012/10/29/windows-azure-storage-client-library-2-0-breaking-changes-amp-migration-guide.aspx
Creating a read-only memory stream around the byte array is pretty lightweight though:
byte[] data = new byte[] { 1, 2, 3 };
using(var stream = new MemoryStream(data, writable: false)) {
blockBlob.UploadFromStream(stream);
}
MSDN documentation - from what I can tell in the source code, this came back for version 3.0 and is still there for version 4.0.
update:
UploadFromByteArray is back.
public void UploadFromByteArray (
byte[] buffer,
int index,
int count,
[OptionalAttribute] AccessCondition accessCondition,
[OptionalAttribute] BlobRequestOptions options,
[OptionalAttribute] OperationContext operationContext
)
http://msdn.microsoft.com/en-us/library/microsoft.windowsazure.storage.blob.cloudblockblob.uploadfrombytearray.aspx
Using the new SDK azure.storage.blob
var blobContainerClient = new BlobContainerClient(storageConnectionString, containerName);
BlobClient blob = blobContainerClient.GetBlobClient(blobName);
using(var ms = new MemoryStream(data, false))
{
await blob.UploadAsync(ms);
}
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