| title | titleSuffix | description | services | author | ms.service | ms.topic | ms.date | ms.author | ms.devlang | ms.custom |
|---|---|---|---|---|---|---|---|---|---|---|
Create a blob container with .NET | Azure Storage | Learn how to create a blob container in your Azure Storage account using the .NET client library. | storage | pauljewellmsft | azure-blob-storage | how-to | 08/05/2024 | pauljewell | csharp | devx-track-csharp, devguide-csharp, devx-track-dotnet |
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Blobs in Azure Storage are organized into containers. Before you can upload a blob, you must first create a container. This article shows how to create containers with the Azure Storage client library for .NET.
[!INCLUDE storage-dev-guide-prereqs-dotnet]
[!INCLUDE storage-dev-guide-project-setup-dotnet]
The authorization mechanism must have the necessary permissions to create a container. For authorization with Microsoft Entra ID (recommended), you need Azure RBAC built-in role Storage Blob Data Contributor or higher. To learn more, see the authorization guidance for Create Container (REST API).
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To create a container, call one of the following methods from the BlobServiceClient class:
You can also create a container using one of the following methods from the BlobContainerClient class:
These methods throw an exception if a container with the same name already exists.
Containers are created immediately beneath the storage account. It's not possible to nest one container beneath another.
The following example uses a BlobServiceClient object to create a container asynchronously:
:::code language="csharp" source="~/azure-storage-snippets/blobs/howto/dotnet/dotnet-v12/Containers.cs" id="CreateSampleContainerAsync":::
A root container serves as a default container for your storage account. Each storage account can have one root container, which must be named $root. The root container must be explicitly created or deleted.
You can reference a blob stored in the root container without including the root container name. The root container enables you to reference a blob at the top level of the storage account hierarchy. For example, you can reference a blob that is in the root container in the following manner:
https://myaccount.blob.core.windows.net/default.html
The following example creates the root container synchronously:
:::code language="csharp" source="~/azure-storage-snippets/blobs/howto/dotnet/dotnet-v12/Containers.cs" id="CreateRootContainer":::
To learn more about creating a container using the Azure Blob Storage client library for .NET, see the following resources.
The Azure SDK for .NET contains libraries that build on top of the Azure REST API, allowing you to interact with REST API operations through familiar .NET paradigms. The client library methods for creating a container use the following REST API operation:
- Create Container (REST API)
[!INCLUDE storage-dev-guide-resources-dotnet]
[!INCLUDE storage-dev-guide-next-steps-dotnet]
