How to get all files from a directory in Azure BLOB using ListBlobsSegmentedAsync

Question

While trying to access all files of the Azure blob folder, getting sample code for container.ListBlobs(); however it looks like an old one.

Old Code : container.ListBlobs();

New Code trying : container.ListBlobsSegmentedAsync(continuationToken);

I am trying to use the below code :

container.ListBlobsSegmentedAsync(continuationToken);

Folders are like :

Container/F1/file.json
Container/F1/F2/file.json
Container/F2/file.json

Looking for the updated version to get all files from an Azure folder. Any sample code would help, thanks!

Answer 1

Update: Getting all files name from a directory with Azure.Storage.Blobs v12 - Package

var storageConnectionString = "DefaultEndpointsProtocol=...........=core.windows.net";
var blobServiceClient = new BlobServiceClient(storageConnectionString);

//get container
var container = blobServiceClient.GetBlobContainerClient("container_name");

List<string> blobNames = new List<string>();

//Enumerating the blobs may make multiple requests to the service while fetching all the values
//Blobs are ordered lexicographically by name
//if you want metadata set BlobTraits - BlobTraits.Metadata
var blobHierarchyItems = container.GetBlobsByHierarchyAsync(BlobTraits.None, BlobStates.None, "/");

await foreach (var blobHierarchyItem in blobHierarchyItems)
{
    //check if the blob is a virtual directory.
    if (blobHierarchyItem.IsPrefix)
    {
        // You can also access files under nested folders in this way,
        // of course you will need to create a function accordingly (you can do a recursive function)
        // var prefix = blobHierarchyItem.Name;
        // blobHierarchyItem.Name = "folderA\"
        // var blobHierarchyItems= container.GetBlobsByHierarchyAsync(BlobTraits.None, BlobStates.None, "/", prefix);     
    }
    else
    {
        blobNames.Add(blobHierarchyItem.Blob.Name);
    }
}

There are more option and example you can find it here.

This is the link to the nuget package.