Updated on 2026-03-06 GMT+08:00

Obtaining Bucket Tags

Functions

This operation obtains information about tags of a bucket.

To perform this operation, you must have the GetBucketTagging permission. By default, only the bucket owner can obtain the tags of a bucket. The bucket owner can allow other users to perform this operation by setting a bucket policy or granting them the permission.

Authorization Information

To call this API, you must be the bucket owner or have the permission to obtain the tags of a bucket. You are advised to use IAM or bucket policies for authorization. For details about OBS authorization methods, see Differences Between OBS Permissions Control Methods.

  • If you use IAM for authorization, you need to use either role/policy-based authorization or identity policy-based authorization and configure the required permissions:
    • If you use role/policy-based authorization (IAM v3 APIs in the old IAM version), you need to grant the obs:bucket:GetBucketTagging permission. For details, see Creating a Custom IAM Policy.
    • If you use identity policy-based authorization (IAM v5 APIs in the new IAM version), you need to grant the obs:bucket:getBucketTagging permission, as shown in the following table. For details, see Creating a Custom IAM Identity Policy.

      Action

      Access Level

      Resource Type (*: Required)

      Condition Key

      Alias

      Dependencies

      obs:bucket:getBucketTagging

      Read

      bucket *

      -

      -

      -

      • obs:EpochTime
      • obs:SourceIp
      • obs:TlsVersion
      • obs:CustomDomain
  • If you use bucket policies for authorization, you need to grant the obs:bucket:GetBucketTagging permission. For details, see Creating a Custom Bucket Policy.

Request Syntax

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GET /?tagging HTTP/1.1 
Host: bucketname.obs.region.myhuaweicloud.com 
Date: date
Authorization: authorization string

Request Parameters

This request contains no message parameters.

Request Headers

This request uses common headers. For details, see Table 3.

Request Elements

This request involves no elements.

Response Syntax

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HTTP/1.1 status_code
x-obs-request-id: request id
x-obs-id-2: id
Content-Type: application/xml 
Content-Length: length
Date: date
<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<Tagging xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">
    <TagSet> 
        <Tag> 
            <Key>key</Key> 
            <Value>value</Value> 
        </Tag> 
    </TagSet> 
</Tagging>

Response Headers

The response to the request uses common headers. For details, see Table 1.

Response Elements

This response contains elements to detail bucket tag configuration. Table 1 describes the elements.

Table 1 Bucket tag configuration elements

Header

Type

Description

Tagging

XML

Definition:

Parent element of TagSet and Tag.

Constraints:

None

TagSet

XML

Definition:

Parent element of Tag. Parent: Tagging

Constraints:

A maximum of 20 tags can be set for a bucket. That means a TagSet can contain a maximum of 20 Tag nodes.

Tag

XML

Definition:

Information element of Tag Parent: TagSet

Constraints:

A maximum of 20 tags can be set for a bucket. That means a TagSet can contain a maximum of 20 Tag nodes.

Key

String

Definition:

Name of a tag. Parent: Tag

Constraints:

  • A tag key can contain a maximum of 36 characters.
  • Tag keys and values cannot contain commas (,), asterisks (*), vertical bars (|), slashes (/), less-than signs (<), greater-than signs (>), equal signs (=), backslashes (\), or ASCII control characters (0x00 to 0x1F). Tag keys and values must be URL encoded before being sent to a server.

Range:

A string between 1 and 36 characters long.

Default value:

None

Value

String

Definition:

Tag value. Parent: Tag

Constraints:

  • A tag value can contain a maximum of 43 characters.
  • Tag keys and values cannot contain commas (,), asterisks (*), vertical bars (|), slashes (/), less-than signs (<), greater-than signs (>), equal signs (=), backslashes (\), or ASCII control characters (0x00 to 0x1F). Tag keys and values must be URL encoded before being sent to a server.

Range:

A string of 0 (included) to 43 (excluded) characters.

Default value:

None

Error Responses

In addition to common error codes, this API also returns other error codes. The following table lists common errors and possible causes. For details, see Table 2.

Table 2 Bucket tag configuration errors

Error Code

Description

HTTP Status Code

NoSuchTagSet

The specified bucket does not have any tags.

404 Not Found

Sample Request

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GET /?tagging HTTP/1.1   
User-Agent: curl/7.29.0   
Host: examplebucket.obs.region.myhuaweicloud.com
Accept: */*   
Date: Wed, 27 Jun 2018 13:25:44 GMT  
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:H1INcyc5i0XlHqYTfuzkPxLZUPM=

Sample Response

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HTTP/1.1 200 OK 
x-obs-request-id: 0002B7532E0000015BEB35330C5884X1 
x-obs-id-2: s12w20LYNQqSb7moq4ibgJwmQRSmVQV+rFBqplOGYkXUpXeS/nOmbkyD+E35K79j 
Content-Type: application/xml 
Date: Wed, 27 Jun 2018 13:25:44 GMT 
Content-Length: 441 

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Tagging xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">
  <TagSet>
    <Tag>
      <Key>TagName1</Key>
      <Value>TagSetValue1</Value>
    </Tag>
  </TagSet>
</Tagging>