List folders using ListBlobsByHierarchy using Azure SDK for cpp

Is there an options or way to fetch that folder1 with ListBlobsByHierarchy?

In my Azure Storage account, I had a folder structure be like:

  sample/
    data.xlsx
  sample/venkat1/
    demo.txt
    file.csv
    sample.pdf
    sample.wav
    samplecert.pfx
    temp2.jpg
    test.jpg  

Portal:

To list blobs hierarchically, you can use the ListBlobsByHierarchy method. However, if you want to list the root directory and get a folder1(sample) as a result, you can try using the ListBlobs method instead.

Code:

#include <azure/storage/blobs.hpp>
#include <iostream>
#include <set>
#include <string>
#include <vector>

int main() {
    std::string connectionString = "DefaultEndpointsProtocol=https;AccountName=venkat326123;AccountKey=T3czZpu1gZ0zzzzzzzzzw2zzz08xcs5p4Wu2+AStD9nyWw==;EndpointSuffix=core.windows.net";
    std::string containerName = "test";

    auto containerClient = Azure::Storage::Blobs::BlobContainerClient::CreateFromConnectionString(connectionString, containerName);
    std::set<std::string> seenDirs;

    Azure::Storage::Blobs::ListBlobsOptions options;
    auto response = containerClient.ListBlobs(options);
    std::cout << "Listing top-level directories:" << std::endl;

    do {
        // List blobs and extract directories from blob names
        for (const auto& blob : response.Blobs) {
            std::string blobName = blob.Name;

            // Split the blob name by '/' to get top-level directories
            size_t pos = blobName.find('/');
            if (pos != std::string::npos) {
                std::string topLevelDir = blobName.substr(0, pos + 1); // Include '/' to indicate directory
                if (seenDirs.find(topLevelDir) == seenDirs.end()) {
                    std::cout << "  Directory: " << topLevelDir << std::endl;
                    seenDirs.insert(topLevelDir);
                }
            }
        }
        if (response.HasPage()) {
            response.MoveToNextPage();
        }
        else {
            break;
        }
    } while (true);
    if (seenDirs.empty()) {
        std::cout << "No top-level directories found." << std::endl;
    }
    return 0;
}

Output:

Listing top-level directories:
  Directory: sample/