如何使用新的 Azure.Storage.Blobs 命名空间仅获取 blob 中的文件夹名称

Question

I want to get all the folder name under a container using new SDK - Azure.Storage.Blobs

Answer 1

You would want to use GetBlobsByHierarchy method in BlobContainerClient class and pass "/" as prefix. The method will return all the blobs and folders at the root level. Once you get that, you will simply need to filter out the blobs by selecting only the items from the result where IsPrefix property is true (or you could check for Blob property to be null ).

Please try something like the following:

        var connectionString = "DefaultEndpointsProtocol=https;AccountName=<account-name>;AccountKey=<account-key>;EndpointSuffix=core.windows.net;";
        var containerName = "test";
        var containerClient = new BlobContainerClient(connectionString, containerName);
        var blobFolders = containerClient.GetBlobsByHierarchy(BlobTraits.None, BlobStates.None, "/").Where(b => b.IsPrefix).ToList();
        for (var i=0; i<blobFolders.Count; i++)
        {
            Console.WriteLine("Folder Prefix: " + blobFolders[i].Prefix);
        }