Help Center/ Object Storage Service/ API Reference/ APIs/ Advanced Bucket Settings/ Obtaining the Custom Domain Name of a Bucket
Updated on 2026-03-06 GMT+08:00

Obtaining the Custom Domain Name of a Bucket

Functions

OBS uses the GET method to obtain the custom domain name of a bucket.

To perform this operation, the user must be the bucket owner or the bucket owner's IAM user that has permissions required for obtaining custom domain names.

Authorization Information

To call this API, you must be the bucket owner or have the permission to obtain the custom domain name 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:GetBucketCustomDomainConfiguration 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:getBucketCustomDomainConfiguration 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:getBucketCustomDomainConfiguration

      Read

      bucket *

      -

      -

      -

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

Request Syntax

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GET /?customdomain HTTP/1.1
User-Agent: curl/7.29.0
Host: bucketname.obs.region.myhuaweicloud.com 
Accept: */*
Date: date
Authorization: authorization string

Request Parameters

This request message does not contain the request parameters.

Request Header

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

Request Elements

This request involves no elements.

Response Syntax

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HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: request id
x-obs-id-2: id
Content-Type: application/xml
Date: date
Content-Length: 272

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ListBucketCustomDomainsResult xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">
  <Domains>
    <DomainName>domainname</DomainName>
    <CreateTime>createtime</CreateTime>
    <CertificateId>exampleCertificateId</CertificateId>
  </Domains>
</ListBucketCustomDomainsResult>

Response Headers

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

Response Elements

The response returns the custom domain name of the bucket in the form of message elements. Table 1 lists details about each element.

Table 1 Response elements

Parameter

Type

Description

ListBucketCustomDomainsResult

Container

Definition:

Container of the returned custom domain name ListBucketCustomDomainsResult is the parent node of Domains.

Range:

None

Domains

Container

Definition:

Custom domain name elements

Range:

For details, see Domains parameters.

Table 2 Domains parameters

Parameter

Type

Description

DomainName

String

Definition:

Custom domain name

Range:

The value is a string of 0 to 256 characters.

CreateTime

String

Definition:

Time when a custom domain name was created.

Range:

  • The value must be a UTC time that complies with the ISO 8601 standard. Example: 2018-01-01T00:00:00.000Z
  • The value is a string of 24 characters.

CertificateId

String

Definition:

ID of the certificate bound to the custom domain name.

Range:

The value must contain 16 characters.

Error Responses

No special error responses are returned. For details about error responses, see Table 2.

Sample Request

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GET /?customdomain HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.com 
Accept: */*
Date: Mon, 14 Jan 2019 08:31:45 +0000
Authorization: OBS UDSIAMSTUBTEST000094:veTm8B18MPLFqNyGh2wmQqovZ2U=

Sample Response

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HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: 000001697693130C80E9D2D29FA84FC2
x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSM80AI9weqGUsIFJScVxSKlG4DmypX9
Content-Type: application/xml
Date: Wed, 13 Mar 2019 10:22:24 GMT
Content-Length: 272

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ListBucketCustomDomainsResult xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">
  <Domains>
    <DomainName>obs.ccc.com</DomainName>
    <CreateTime>2019-03-13T10:22:05.912Z</CreateTime>
    <CertificateId>exampleCertificateId</CertificateId>
  </Domains>
</ListBucketCustomDomainsResult>