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Create Container


Updated: August 4, 2015

The Create Container operation creates a new container under the specified account. If the container with the same name already exists, the operation fails.

The container resource includes metadata and properties for that container. It does not include a list of the blobs contained by the container.

The Create Container request may be constructed as follows. HTTPS is recommended. Your mycontainer value can only include lower-case characters. Replace myaccount with the name of your storage account:


Request URI

HTTP Version



When making a request against the emulated storage service, specify the emulator hostname and Blob service port as, followed by the emulated storage account name:


Request URI

HTTP Version



For more information, see Using the Azure Storage Emulator for Development and Testing and Differences Between the Storage Emulator and Azure Storage Services.

The following additional parameters may be specified on the request URI.




Optional. The timeout parameter is expressed in seconds. For more information, see Setting Timeouts for Blob Service Operations.

The following table describes required and optional request headers.

Request Header



Required. Specifies the authentication scheme, account name, and signature. For more information, see Authentication for the Azure Storage Services.

Date or x-ms-date

Required. Specifies the Coordinated Universal Time (UTC) time for the request. For more information, see Authentication for the Azure Storage Services.


Required for all authenticated requests. Specifies the version of the operation to use for this request. For more information, see Versioning for the Azure Storage Services.


Optional. A name-value pair to associate with the container as metadata.

Note that beginning with version 2009-09-19, metadata names must adhere to the naming rules for C# identifiers.


Optional. Specifies whether data in the container may be accessed publicly and the level of access. Possible values include:

  • container: Specifies full public read access for container and blob data. Clients can enumerate blobs within the container via anonymous request, but cannot enumerate containers within the storage account.

  • blob: Specifies public read access for blobs. Blob data within this container can be read via anonymous request, but container data is not available. Clients cannot enumerate blobs within the container via anonymous request.

If this header is not included in the request, container data is private to the account owner.


Optional. Provides a client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage analytics logging is enabled. Using this header is highly recommended for correlating client-side activities with requests received by the server. For more information, see About Storage Analytics Logging and Azure Logging: Using Logs to Track Storage Requests.

Request Syntax:

Request Headers:
x-ms-version: 2011-08-18
x-ms-date: Sun, 25 Sep 2011 22:50:32 GMT
x-ms-meta-Name: StorageSample
Authorization: SharedKey myaccount:Z5043vY9MesKNh0PNtksNc9nbXSSqGHueE00JdjidOQ=

The response includes an HTTP status code and a set of response headers.

A successful operation returns status code 201 (Created).

For information about status codes, see Status and Error Codes.

The response for this operation includes the following headers. The response may also include additional standard HTTP headers. All standard headers conform to the HTTP/1.1 protocol specification.

Response header



The ETag for the container. If the request version is 2011-08-18 or newer, the ETag value will be in quotes.


Returns the date and time the container was last modified. The date format follows RFC 1123. For more information, see Representation of Date/Time Values in Headers.

Any operation that modifies the container or its properties or metadata updates the last modified time. Operations on blobs do not affect the last modified time of the container.


This header uniquely identifies the request that was made and can be used for troubleshooting the request. For more information, see Troubleshooting API Operations 


Indicates the version of the Blob service used to execute the request. This header is returned for requests made against version 2009-09-19 and later.


A UTC date/time value generated by the service that indicates the time at which the response was initiated.

Response Status:
HTTP/1.1 201 Created

Response Headers:
Transfer-Encoding: chunked
Date: Sun, 25 Sep 2011 23:00:12 GMT
ETag: “0x8CB14C3E29B7E82”
Last-Modified: Sun, 25 Sep 2011 23:00:06 GMT
x-ms-version: 2011-08-18
Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0

Only the account owner may call this operation.

Containers are created immediately beneath the storage account. It's not possible to nest one container beneath another.

You can optionally create a default or root container for your storage account. The root container may be inferred from a URL requesting a blob resource. The root container makes it possible to reference a blob from the top level of the storage account hierarchy, without referencing the container name.

To add the root container to your storage account, create a container named $root. Construct the request as follows:

Request Syntax:
PUT$root?restype=container HTTP/1.1

Request Headers:
x-ms-version: 2011-08-18
x-ms-date: Sun, 25 Sep 2011 22:50:32 GMT
x-ms-meta-Name: StorageSample
Authorization: SharedKey myaccount:Z5043vY9MesKNh0PNtksNc9nbXSSqGHueE00JdjidOQ=

You can specify metadata for a container at the time it is created by including one or more metadata headers on the request. The format for the metadata header is x-ms-meta-name:value.

If a container by the same name is being deleted when Create Container is called, the server will return status code 409 (Conflict), with additional error information indicating that the container is being deleted.

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