How to list blobs from virtual directory without prefix?

Question

I have the following list of blobs:

VirtualDirectroy1/VirtualSubDirectory1/Blob1
VirtualDirectroy2/VirtualSubDirectory2/Blob2
VirtualDirectroy3/VirtualSubDirectory3/Blob3

I need to list Blob1, Blob2 and Blob3, so that when accessing the CloudBlockBlob.Name property it returns just Blob1, Blob2 or Blob 3 WITHOUT prefix of virtual directories.

How can I archive this?

Best Wishes, Oleg

user92454 · Accepted Answer · 2014-12-12 07:33:01Z

3

If you are using the Azure storage .Net client library (I am using version 3.0.3 in which these methods/overloads are available), you could do something this:

var container = GetBlobContainer();
foreach (var blobItem in container.ListBlobs(useFlatBlobListing: true))
{
    Console.WriteLine(blob.Parent.Uri.MakeRelativeUri(blob.Uri));
}

answered Dec 12, 2014 at 7:33

user92454

1,2211 gold badge10 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

ob1dev Over a year ago

Even though I list blobs using useFlatBlobListing=true, the CloudBlockBlob.Name property still returns a blob's name including virtual directories. However, the blob.Parent.Uri.MakeRelativeUri(blob.Uri) makes the trick that I need. Thanks for your help.

David S. Over a year ago

It seems that if a file is not in a virtual directory (i.e. directly in the container 'root') then this solution will write containerName/fileName

chris31389 · Accepted Answer · 2016-08-24 13:29:38Z

2

I found you can do this:

var storageAccountConnectionString = "...";
var storageAccount = CloudStorageAccount.Parse(storageAccountConnectionString);

var cloudBlobClient = storageAccount.CreateCloudBlobClient();
var cloudBlobContainer = cloudBlobClient.GetContainerReference("containerName");
foreach (var blob in cloudBlobContainer.ListBlobs())
{
    Console.WriteLine(blob.Uri.Segments.Last());
}

edited Aug 24, 2016 at 13:29

answered Aug 12, 2016 at 15:21

chris31389

9,5368 gold badges61 silver badges74 bronze badges

1 Comment

Steph Over a year ago

You need to remove the trailing / ;)

Abhijeet · Accepted Answer · 2014-12-12 09:12:11Z

class Program
{
    const string _conStr = "storage connection string";
    const string _container =  "container name";
    static void Main(string[] args)
    {
        var names = new Program().GetBlobNames();
        Console.ReadKey();
    }

    private List<string> GetBlobNames()
    {
        CloudStorageAccount acc = CloudStorageAccount.Parse(_conStr);
        CloudBlobClient blobClient = acc.CreateCloudBlobClient();
        CloudBlobContainer cntnr = blobClient.GetContainerReference(_container);
        List<IListBlobItem> blobList = cntnr.ListBlobs("").ToList();
        List<string> flatList = new List<string>();
        List<IListBlobItem> blobItems = new List<IListBlobItem>();
        foreach (IListBlobItem blobItem in blobList)
        {
            //If it is cloudblob directory
            if (blobItem.GetType() == typeof(CloudBlobDirectory))
            {
                CloudBlobDirectory dir = blobItem as CloudBlobDirectory;
                GetFilesInDirectory(dir, blobItems);
            }
        }
        return blobItems.Select(b => b.Parent.Uri.MakeRelativeUri(b.Uri).ToString()).ToList();            
    }


    private void GetFilesInDirectory(CloudBlobDirectory directory, List<IListBlobItem> fileList)
    {
        foreach (var blobItem in directory.ListBlobs())
        {
            if (blobItem.GetType() == typeof(CloudBlockBlob))
            {
                CloudBlockBlob blob = (CloudBlockBlob)blobItem;                    
                fileList.Add(blob);
            }
            else if (blobItem.GetType() == typeof(CloudPageBlob))
            {
                CloudPageBlob blob = (CloudPageBlob)blobItem;
                fileList.Add(blob);
            }
            else if (blobItem.GetType() == typeof(CloudBlobDirectory))
            {
                //Fetch recursively all the blobs
                CloudBlobDirectory blob = (CloudBlobDirectory)blobItem;
                GetFilesInDirectory(blob, fileList);
            }
        }
    }
}

how to get all files from specific container? including directory and subdirectory...?

Collectives™ on Stack Overflow

How to list blobs from virtual directory without prefix?

3 Answers 3

2 Comments

1 Comment

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

1 Comment

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related