Azure 存储 blob 下载旧文件版本

Question

I am facing the issue while downloading of azure blob file with old file being downloaded.Here are the steps.

While uploading.. following code is used.

                BlobClient blobClient = containerClient.GetBlobClient(fileNamePrefix);
                if (blobClient.Exists())
                {
                    await blobClient.DeleteIfExistsAsync(DeleteSnapshotsOption.IncludeSnapshots);
                    await blobClient.UploadAsync(stream, true);
                }

While above process works well, and in blob storage, i see updated file, if the same blob already existed.

After this is done, If i perform download operation.

BlobClient blobClient = containerClient.GetBlobClient(blobName);
await blobClient.DownloadToAsync(mstream);

I still see old file. So even though, new file exists in storage, the operation gives me old file.

It's baffling why it happening, but any idea's would be useful.

Thank you.

Answer 1

Putting it here so anyone else faces problem. Will help them.

You have to use BlobClient for Delete of snapshot. await blobClient.DeleteIfExistsAsync(DeleteSnapshotsOption.IncludeSnapshots, null, default);

Please mark this as answer for others:)

Answer 2

I had the same behavior you have. After logging out and log back in Azure, I did see the updated file as expected.