Call DeleteMultipleObjects to delete multiple objects - Object Storage Service

Deletes multiple objects from a bucket.

Note

A call to the DeleteMultipleObjects operation can delete up to 1,000 objects.
Deleted objects cannot be recovered. Proceed with caution. For more information about how to delete objects, see Delete objects.

Versioning

You can call the DeleteMultipleObjects operation to delete multiple objects from a versioned bucket. If you do not specify the version IDs of the objects that you want to delete in your request, delete markers are added to the objects. If you specify the version IDs of the objects that you want to delete in your request, the specified object versions are permanently deleted.

Request syntax

POST /?delete HTTP/1.1
Host: BucketName.oss-cn-hangzhou.aliyuncs.com
Date: GMT Date
Content-Length: ContentLength
Content-MD5: MD5Value
Authorization: SignatureValue
<?xml version="1.0" encoding="UTF-8"?>
<Delete>
  <Quiet>true</Quiet>
  <Object>
    <Key>key</Key>
  </Object>
...
</Delete>

Request headers

Object Storage Service (OSS) verifies the body of a DeleteMultipleObjects request based on the following headers and deleted the specified objects only when the verification is successful.

Header	Type	Required	Example	Description
Encoding-type	String	No	url	The encoding type of the object names in the response. The value of the Key element is UTF-8 encoded. If the Key element includes control characters that are not supported by the XML 1.0 standard, you can specify this header to encode the value of the Key element in the response. By default, this header is left empty. Valid value: url
Content-Length	String	Yes	151	The length of the HTTP message body. OSS uses this header to verify the message body of the request and deletes the specified objects only when the length of the message body is the same as the value of this header.
Content-MD5	String	Yes	ohhnqLBJFiKkPSBO1eNaUA==	The MD5 hash calculated by using the MD5 algorithm. This header is used to check whether the content of the received message is the same as that of the sent message. After the Content-MD5 header is specified in the request, OSS calculates the MD5 hash based on the message body and checks whether the calculated MD5 hash is the same as the Content-MD5 value specified in the request. Note To obtain the value of the Content-MD5 header, encrypt the message body of the DeleteMultipleObjects request by using the MD5 algorithm to obtain a 128-bit byte array, and then encode the byte array in Base64.

Request elements

Element	Type	Required	Example	Description
Delete	Container	Yes	N/A	The container that stores the DeleteMultipleObjects request content. Child nodes: Object and Quiet Parent nodes: none
Object	Container	Yes	N/A	The container that stores the information about an object. Child nodes: Key Parent nodes: Delete
Key	String	Yes	test.jpg	The name of the object that you want to delete. Parent nodes: Object
Quiet	Enumerated string	Yes	false	Specifies whether to enable the Quiet return mode. The DeleteMultipleObjects operation provides the following return modes: quiet: The response does not include a message body. verbose: The message body of the response contains information about all the deleted objects. By default, this mode is used. Valid values: true and false Default value: false. Parent nodes: Delete
VersionId	String	No	CAEQNRiBgIDyz.6C0BYiIGQ2NWEwNmVhNTA3ZTQ3MzM5ODliYjM1ZTdjYjA4****	The version ID of the object that you want to delete. Parent nodes: Object

Response elements

Element	Type	Example	Description
Deleted	Container	N/A	The container that stores information about the deleted objects. Important The Deleted response element contains information only about the deleted objects and does not contain information about the objects that fail to be deleted. To obtain the names of the objects that fail to be deleted in the DeleteMultipleObjects operation, you can compare values of the Delete header in the request and the values of the Deleted header in the response. Child nodes: Key Parent nodes: DeleteResult
DeleteResult	Container	N/A	The container that stores the result of the DeleteMultipleObjects request. Child nodes: Deleted Parent nodes: none
Key	String	demo.jpg	The name of the deleted object. Parent nodes: Deleted
EncodingType	String	url	The encoding type of the name of the deleted object in the response. If encoding-type is specified in the request, the object name is encoded in the returned result. Parent nodes: Container
DeleteMarker	Boolean	true	Indicates whether the deleted version is a delete marker. true: The deleted version is a delete marker. false: The specified version is not a delete marker. Note The DeleteMarker element is included in the response only when the DeleteMultipleObjects operation involves the creation or permanent deletion of a delete marker.
DeleteMarkerVersionId	String	THUQNRiBgICEoPiC0BYiIGMxZWJmYmMzYjE0OTQ0ZmZhYjgzNzkzYjc2NjZk****	The version ID of the delete marker. Parent nodes: Deleted

Examples

Sample request in which the Quiet mode is disabled

POST /?delete HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Wed, 29 Feb 2012 12:26:16 GMT
Content-Length:151
Content-MD5: ohhnqLBJFiKkPSBO1eNaUA==
Authorization: OSS qn6q**************:77Dv****************

<?xml version="1.0" encoding="UTF-8"?>
<Delete> 
  <Quiet>false</Quiet>  
  <Object> 
    <Key>multipart.data</Key> 
  </Object>  
  <Object> 
    <Key>test.jpg</Key> 
  </Object>  
  <Object> 
    <Key>demo.jpg</Key> 
  </Object> 
</Delete>

Sample response

HTTP/1.1 200 OK
x-oss-request-id: 78320852-7eee-b697-75e1-b6db0f4849e7
Date: Wed, 29 Feb 2012 12:26:16 GMT
Content-Length: 244
Content-Type: application/xml
Connection: keep-alive
Server: AliyunOSS

<?xml version="1.0" encoding="UTF-8"?>
<DeleteResult xmlns="http://doc.oss-cn-hangzhou.aliyuncs.com">
    <Deleted>
       <Key>multipart.data</Key>
    </Deleted>
    <Deleted>
       <Key>test.jpg</Key>
    </Deleted>
    <Deleted>
       <Key>demo.jpg</Key>
    </Deleted>
</DeleteResult>

Sample request in which the Quiet mode is enabled

POST /?delete HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Wed, 29 Feb 2012 12:33:45 GMT
Content-Length:151
Content-MD5: ohhnqLBJFiKkPSBO1eNaUA==
Authorization: OSS qn6q**************:77Dv****************

<?xml version="1.0" encoding="UTF-8"?>
<Delete> 
  <Quiet>true</Quiet>  
  <Object> 
    <Key>multipart.data</Key> 
  </Object>  
  <Object> 
    <Key>test.jpg</Key> 
  </Object>  
  <Object> 
    <Key>demo.jpg</Key> 
  </Object> 
</Delete>

Sample response

HTTP/1.1 200 OK
x-oss-request-id: 559CC9BDC755F95A64485981
Date: Wed, 29 Feb 2012 12:33:45 GMT
Content-Length: 0
Connection: keep-alive
Server: AliyunOSS

Sample request in which no version IDs are specified

POST /?delete HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Tue, 09 Apr 2019 04:20:03 GMT
Content-MD5: xSLOYWaPC86RPwWXNiFeXg==
Authorization: OSS qn6q**************:77Dv****************

<?xml version="1.0" encoding="UTF-8"?>
<Delete> 
  <Quiet>false</Quiet>  
  <Object> 
    <Key>multipart.data</Key>
  </Object>  
  <Object> 
    <Key>test.jpg</Key> 
  </Object>
</Delete>

Sample response

In the following example, the version IDs of the two objects that you want to delete (multipart.dat and test.jpg) are not specified. Therefore, OSS adds delete markers to the two objects, and returns <DeleteMarker>true</DeleteMarker> and <DeleteMarkerVersionId>XXXXXX</DeleteMarkerVersionId>.

HTTP/1.1 200 OK
x-oss-request-id: 5CAC1D73B7AEADE01700****
Date: Tue, 09 Apr 2019 04:20:03 GMT
Content-Type: application/xml
Connection: keep-alive
Server: AliyunOSS

<?xml version="1.0" encoding="UTF-8"?>
<DeleteResult>
    <Deleted>
       <Key>multipart.data</Key>
       <DeleteMarker>true</DeleteMarker>
       <DeleteMarkerVersionId>CAEQMhiBgIDXiaaB0BYiIGQzYmRkZGUxMTM1ZDRjOTZhNjk4YjRjMTAyZjhl****</DeleteMarkerVersionId>
    </Deleted>
    <Deleted>
       <Key>test.jpg</Key>
       <DeleteMarker>true</DeleteMarker>
       <DeleteMarkerVersionId>CAEQMhiBgIDB3aWB0BYiIGUzYTA3YzliMzVmNzRkZGM5NjllYTVlMjYyYWEy****</DeleteMarkerVersionId>
    </Deleted>
</DeleteResult>

Sample request in which version IDs are specified

Note

You must specify both the Key and VersionId elements.

POST /?delete HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Tue, 09 Apr 2019 06:09:34 GMT
Content-Length:151
Content-MD5: 2Tpk+dL/tGyuSA+YCEuSVg==
Authorization: OSS qn6q**************:77Dv****************

<?xml version="1.0" encoding="UTF-8"?>
<Delete> 
  <Quiet>false</Quiet>  
  <Object> 
    <Key>multipart.data</Key>
    <VersionId>CAEQNRiBgIDyz.6C0BYiIGQ2NWEwNmVhNTA3ZTQ3MzM5ODliYjM1ZTdjYjA4****</VersionId>
  </Object>
</Delete>

Sample response

In this example, the key and version ID of the deleted object are returned.

HTTP/1.1 200 OK
x-oss-request-id: 5CAC371EB7AEADE01700****
Date: Tue, 09 Apr 2019 06:09:34 GMT
Content-Length: 244
Content-Type: application/xml
Connection: keep-alive
Server: AliyunOSS

<?xml version="1.0" encoding="UTF-8"?>
<DeleteResult xmlns="http://doc.oss-cn-hangzhou.aliyuncs.com">
    <Deleted>
       <Key>multipart.data</Key>
       <VersionId>CAEQNRiBgIDyz.6C0BYiIGQ2NWEwNmVhNTA3ZTQ3MzM5ODliYjM1ZTdjYjA4****</VersionId>
    </Deleted>
</DeleteResult>

Sample request to delete a delete marker by specifying the versionId element

POST /?delete HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Tue, 09 Apr 2019 06:14:50 GMT
Content-Length: 178
Content-MD5: dX9IFePFgYhmINvAhG30Bg==
Authorization: OSS qn6q**************:77Dv****************

<?xml version="1.0" encoding="UTF-8"?>
<Delete> 
  <Quiet>false</Quiet>  
  <Object> 
    <Key>multipart.data</Key>
    <VersionId>CAEQNRiBgICEoPiC0BYiIGMxZWJmYmMzYjE0OTQ0ZmZhYjgzNzkzYjc2NjZk****</VersionId>
  </Object>
</Delete>

Sample response

The Key element indicates the name of the deleted object and the VersionId element indicates the deleted version of the object.
DeleteMarker indicates that a delete marker is deleted. DeleteMarkerVersionId indicates the version ID of the delete marker. In this case, the values of VersionId and DeleteMarkerVersionId are the same, and DeleteMarker and DeleteMarkerVersionId are returned together.

HTTP/1.1 200 OK
x-oss-request-id: 5CAC385AB7AEADE01700****
Date: Tue, 09 Apr 2019 06:14:50 GMT
Content-Length: 364
Content-Type: application/xml
Connection: keep-alive
Server: AliyunOSS

<?xml version="1.0" encoding="UTF-8"?>
<DeleteResult xmlns="http://doc.oss-cn-hangzhou.aliyuncs.com">
    <Deleted>
       <Key>demo.jpg</Key>
       <VersionId>CAEQNRiBgICEoPiC0BYiIGMxZWJmYmMzYjE0OTQ0ZmZhYjgzNzkzYjc2NjZk****</VersionId>
       <DeleteMarker>true</DeleteMarker>
       <DeleteMarkerVersionId>THUQNRiBgICEoPiC0BYiIGMxZWJmYmMzYjE0OTQ0ZmZhYjgzNzkzYjc2NjZk****</DeleteMarkerVersionId>
    </Deleted>
</DeleteResult>

SDK

You can use OSS SDKs for the following programming languages to call the DeleteMultipleObjects operation:

References

For more information about the API operation that you can call to delete a single object, see DeleteObject.
For formation about how to automatically delete objects, see Overview.

Error codes

Error code	HTTP status code	Description
InvalidDigest	400	The Content-MD5 value that is calculated by OSS based on the message body is different from the Content-MD5 value that is specified in the request header.
MalformedXML	400	The size of the message body exceeds 2 MB. The number of objects that you specified in the DeleteMultipleObjects request exceeds 1,000.
FileImmutable	409	The data that you want to delete or modify is protected by a retention policy.