CODEWITHSUNDEEP
azurecontainers
Kabinad Teshager
Kabinad Teshager

Reputation: 147

How to List the containers in azure blob storage?

I am developing a social network application.

I want to creat ,in azure storage, a container for each user (client) joining a social network, which means user1 has a container named container 1, and inside container 1 there will be user 1 profile in xml format and a profile picture of user 1.

Similarly, for user2 there will be container 2 created in azure blob storage and then user 2 profile is saved in xml format and profile picture of user 2, and it goes like this so for, let say, 10 users there will be 10 containers.

If i want to list all 9 users' information stored in Azure storage in different 9 containers from user client 1, how could i do that?

I am using webservice, but the challenge I am facing is how to collect all the 9 user profile information located in 9 different containers.

Upvotes: 15

Views: 16295

Answers (5)

Naveen Kumar V
Naveen Kumar V

Reputation: 2829

Using Azure.Storage.Blobs in .NET 8: (Just in case if it helps someone like me)

public async Task<List<string>> ListContainersAsync () {
var containersPage = new BlobServiceClient("<CONNECTION STRING>").GetBlobContainersAsync ().AsPages ();
   var containers = new List<string> ();
   await foreach (Azure.Page<BlobContainerItem> containerPage in containersPage)
      foreach (BlobContainerItem containerItem in containerPage.Values)
         containers.Add (containerItem.Name);
   return containers;
}

Upvotes: 0

IdusOrtus
IdusOrtus

Reputation: 1136

Azure Blob Storage client library v12 for .NET

using Azure;
using Azure.Storage.Blobs;

BlobServiceClient blobServiceClient = new BlobServiceClient(azStorageConnString);
var containerList = blobServiceClient.GetBlobContainers();

foreach (var container in containerList)
  // doImportantWork

Upvotes: 7

Ashish Gautam
Ashish Gautam

Reputation: 21

CloudStorageAccount account =
    CloudStorageAccount.FromConfigurationSetting("DataConnectionString");

// We need to access blobs now, so create a CloudBlobClient
var blobClient = account.CreateCloudBlobClient();

IEnumerable<CloudBlobContainer> containers = blobClient.ListContainers();

// This will return you list of containers
var containerList = containers.Select(e => e.Name).Tolist();

Upvotes: 1

user3613932
user3613932

Reputation: 1397

For newer versions of Microsoft.WindowsAzure.Storage, use the right variant of CloudBlobClient.ListContainersSegmentedAsync method. Example usage is as follows:

private static async Task<IEnumerable<CloudBlobContainer>> ListContainersAsync(CloudBlobClient cloudBlobClient)
{
    BlobContinuationToken continuationToken = null;
    var containers = new List<CloudBlobContainer>();

    do
    {
        ContainerResultSegment response = await cloudBlobClient.ListContainersSegmentedAsync(continuationToken);
        continuationToken = response.ContinuationToken;
        containers.AddRange(response.Results);

    } while (continuationToken != null);

    return containers;
}

Usage of the above method will be as follows:

string connectionString = "<your connection string>";
CloudStorageAccount.TryParse(connectionString, out CloudStorageAccount storageAccount);

if (storageAccount == null)
{
    Console.WriteLine("Connection string did not work");
}

CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();
var containers = await ListContainersAsync(cloudBlobClient);

Alternately, you can create an extension method as follows:

public static class CloudBlobClientExtension
{
    public static async Task<IEnumerable<CloudBlobContainer>> ListContainersAsync(this CloudBlobClient cloudBlobClient)
    {
        BlobContinuationToken continuationToken = null;
        var containers = new List<CloudBlobContainer>();

        do
        {
            ContainerResultSegment response = await cloudBlobClient.ListContainersSegmentedAsync(continuationToken);
            continuationToken = response.ContinuationToken;
            containers.AddRange(response.Results);

        } while (continuationToken != null);

        return containers;
    }
}

Usage of the above extension method will be as follows:

string connectionString = "<your connection string>";
CloudStorageAccount.TryParse(connectionString, out CloudStorageAccount storageAccount);

if (storageAccount == null)
{
    Console.WriteLine("Connection string did not work");
}

CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();
IEnumerable<CloudBlobContainer> containers = await cloudBlobClient.ListContainersAsync();

For more details, please refer to MSDN and Balkan's Blog

For older Azure Storage versions, use CloudBlobClient.ListContainers method. Example usage is as follows:

string connectionString = "<your connection string>";
CloudStorageAccount.TryParse(connectionString, out CloudStorageAccount storageAccount);

if (storageAccount == null)
{
    Console.WriteLine("Connection string did not work");
}

CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();
var containers = cloudBlobClient.ListContainers();

Upvotes: 12

Yossi Dahan
Yossi Dahan

Reputation: 5377

The following should do the trick - 

            CloudStorageAccount account =
            CloudStorageAccount.FromConfigurationSetting("DataConnectionString");
        // We need to access blobs now, so create a CloudBlobClient
        CloudBlobClient blobClient = account.CreateCloudBlobClient();

        IEnumerable<CloudBlobContainer> containers = blobClient.ListContainers();

Upvotes: 43

Related Questions