How to list blobs from virtual directory without prefix? - azure

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

Answer 1

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));
}

Answer 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());
}

Answer 3

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);
}
}
}
}