How can I get references to BlockBlob objects from CloudBlobDirectory.ListBlobs?

Question

I am using the Microsoft Azure .NET client libraries to interact with Azure cloud storage. I need to be able to access additional information about each blob in its metadata col

Answer 1

This approach has been developed for Java, but I hope it can somehow be modified to fit any other supported language. Despite the functionality you ask has not been explicitly developed yet, I think I found a different (hopefully less clunky) way to access CloudBlockBlob data from a ListBlobItem element.

The following code can be used to delete, for example, every blob inside a specific directory.

String blobUri;
CloudBlobClient blobClient = /* Obtain your blob client */

try{
     CloudBlobContainer container = /* Obtain your blob container */

     for (ListBlobItem blobItem : container.listBlobs(blobPrefix)) {

          if (blobItem instanceof CloudBlob) {
                blob = (CloudBlob) blobItem;
                if (blob.exists()){
                    System.out.println("Deleting blob " + blob.getName());
                    blob.delete();
                }
          }
     }
}catch (URISyntaxException | StorageException ex){
        Logger.getLogger(BlobOperations.class.getName()).log(Level.SEVERE, null, ex);
}