Blob creation date is null

[pcmalik]

Which service(blob, file, queue, table) does this issue concern?

blob

Which version of the SDK was used?

WindowsAzure.Storage 9.3.3

Which platform are you using? (ex: .NET Core 2.1)

.NET Core 3.1

What problem was encountered?

blob 'Created' date is null when stream content is uploaded to blob store using UploadFromStreamAsync method

How can we reproduce the problem in the simplest way?

Below method 'UploadAsync' is returning null value in 'Created' field:

    public async Task<DateTime?> UploadAsync(string filename, Stream stream)
    {
        var blobReference = await GetBlobReferenceAsync(filename);
        await blobReference.UploadFromStreamAsync(stream);

        return Convert.ToDateTime(blobReference.Properties.Created.ToString(), CultureInfo.CurrentCulture);
    }

    private async Task<CloudBlockBlob> GetBlobReferenceAsync(string filename)
    {
        var storageCredentials = new StorageCredentials(_blobSettings.AccountName, _blobSettings.AccountKey);
        var storageAccount = new CloudStorageAccount(storageCredentials, useHttps: true);
        var blobClient = storageAccount.CreateCloudBlobClient();
        var blobContainer = blobClient.GetContainerReference(_blobSettings.ContainerName);
        await blobContainer.CreateIfNotExistsAsync();
        var blobReference = blobContainer.GetBlockBlobReference(filename);

        return blobReference;
    }

Have you found a mitigation/solution?

No