How do I set a retry policy on an Azure blob storage operation using the Azure.Storage.Blobs assembly?

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Using the latest (12.3.0 at the time of writing) Nuget package for the Azure.Storage.Blobs assembly, and uploading asynchronously with the BlobServiceClient class, I want to set retry options in case of transient failure.

But no overload of the UploadAsync() method takes any object with retry options:

UploadAsync(Stream, BlobHttpHeaders, IDictionary<String,String>, BlobRequestConditions, IProgress<Int64>, Nullable<AccessTier>, StorageTransferOptions, CancellationToken)

And although when creating a BlobServiceClient, it is possible to set BlobClientOptions, and these do inherit a RetryOptions field from the abstract base class ClientOptions, this field is read only:

    // Summary:
    // Gets the client retry options.
    public RetryOptions Retry { get; }

How do I set a retry policy on an Azure blob storage operation using the Azure.Storage.Blobs assembly?

azure-blob-storage .net-core azure c#
1 Answers

You should specify the retry part when creating the blob client. Here's a sample:

    var options = new BlobClientOptions();
    options.Diagnostics.IsLoggingEnabled = false;
    options.Diagnostics.IsTelemetryEnabled = false;
    options.Diagnostics.IsDistributedTracingEnabled = false;
    options.Retry.MaxRetries = 0;

    var client = new BlobClient(blobUri: new Uri(uriString:""), options: options);

In addition, it is possible to set the BlobClientOptions when creating a BlobServiceClient:

var blobServiceClient = new BlobServiceClient
(connectionString:storageAccountConnectionString, options: options );

You can then use BlobServiceClient.GetBlobContainerClient(blobContainerName:"") and BlobContainerClient.GetBlobClient(blobName:"") to build the blob URI in a consistent manner, with options.

user_13845390
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