[BUG] getMetadata returns only nulls

[MichaelVonB]

[BUG] getMetadata returns only nulls

[alzimmermsft]

Thanks for filing this issue @MichaelVonB.

I believe you're running into this problem as there aren't any includes set in the listBlobs call. This document goes over the REST API details on how to include additional information in the response BlobItem:

https://learn.microsoft.com/rest/api/storageservices/list-blobs?tabs=microsoft-entra-id#metadata-in-the-response

And here is an example of the updated Java code:

BlobContainerClient blobContainerClient = blobServiceClient.getBlobContainerClient("my-blob-container-client");
List<Map<String, String>> metaDataList = blobContainerClient.listBlobs(new ListBlobsOptions().setDetails(new BlobListDetails().setRetrieveMetadata(true)), null).stream()
            .map(BlobItem::getMetadata)
            .toList();

And here is a test we run that validates the behavior:

https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/storage/azure-storage-blob/src/test/java/com/azure/storage/blob/ContainerApiTests.java#L819

[MichaelVonB]

Thank you for your quick supply. This fixed the issue. My bad i missed this.
For local development we are using azurite and there metadata are always populated regardless of ListBlobsOptions so we never searched in that direction.