Obtaining Bucket Storage Class Information

Functions

This operation obtains the default storage class of a bucket.

To perform this operation, you must have the GetBucketStoragePolicy permission. By default, only the bucket owner can perform this operation. The bucket owner can grant the permission to other users by configuring the bucket policy or user policy.

Authorization Information

To call this API, you must be the bucket owner or have the permission to obtain the storage class information 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:GetBucketStoragePolicy 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:getBucketStoragePolicy 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:getBucketStoragePolicy	Read	bucket *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-	-
    		-	obs:EpochTime obs:SourceIp obs:TlsVersion obs:CustomDomain

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

Request Syntax

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

Request Parameters

This request contains no message parameters.

Request Headers

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

Request Elements

This request contains no elements.

Response Syntax

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HTTP/1.1 status_code 
Date: date 
Content-Type: type 
Content-Length: length 

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 

<StorageClass xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">STANDARD</StorageClass>

Response Headers

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

Response Elements

This response contains elements to provide details about the storage class information of a bucket. Table 1 describes the elements.

Error Responses

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

Sample Request

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GET /?storageClass HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.com
Accept: */*
Date: WED, 01 Jul 2015 03:20:28 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:0zVTSdKG6OFCIH2dKvmsVGYCQyw=

Sample Response

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HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BF260000016436BE45820FDF3A65B42C
x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSCju1CZy3ZfRVW5hiNd024lRFdUoqWy
Content-Type: application/xml
Date: WED, 01 Jul 2015 03:20:28 GMT
Content-Length: 142

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<StorageClass xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">STANDARD</StorageClass>