Object Storage Service:DeleteObject

Usage notes

• To delete an object, you must have the oss:DeleteObject permission. To delete a specific version of an object, you must have the oss:DeleteObjectVersion permission. For more information, see Attach a custom policy to a RAM user.
• HTTP status code 204 is returned when the DeleteObject operation succeeds, regardless of whether the object exists.
• If the object you want to delete is a symbolic link, the DeleteObject operation deletes only the symbolic link but not the content to which the link points.
• The DeleteObject operation cannot be used to delete directories in a bucket for which the hierarchical namespace feature is enabled.

Versioning

When you call DeleteObject to delete an object from a versioned bucket, you must determine whether to specify a version ID in the request.

• Delete an object without specifying a version ID (temporary deletion)

  By default, if you do not specify the version ID of the object that you want to delete in the request, OSS does not delete the current version of the object but adds a delete marker to the object as the new version. In addition, the x-oss-delete-marker=true header and the x-oss-version-id header that indicates the version ID of the created delete marker are included in the response.

  The value of the x-oss-delete-marker header in the response is true, which indicates that the x-oss-version-id is the version ID of a delete marker.

  Note If versioning is suspended for a bucket and an object has a previous version whose ID is null, a delete marker whose version ID is null is added to the object and the previous version whose ID is null is overwritten when you perform the DeleteObject operation without specifying a version ID in the request. An object can have up to one version whose version ID is null.
• Delete an object by specifying a version ID (permanent deletion)

  If you specify the version ID of the object that you want to delete in the request, OSS permanently deletes the version specified by the versionId field in the params parameter. To delete a version whose ID is null, add params['versionId'] = "null" to the params parameter in the request. OSS identifies the string "null" as the ID of the version to delete and deletes the version whose ID is null.

Request structure

DELETE /ObjectName HTTP/1.1
Host: BucketName.oss-cn-hangzhou.aliyuncs.com
Date: Wed, 02 Jan 2019 13:28:38 GMT
Authorization: SignatureValue

Request headers

This request contains only common request headers. For more information, see Common request headers.

Response headers

The response to a DeleteObject request contains only common response headers. For more information, see Common response headers.

Examples

• Delete an object from an unversioned bucket.
  Sample requests

  DELETE /AK.txt HTTP/1.1
  Host: test.oss-cn-zhangjiakou.aliyuncs.com
  Accept-Encoding: identity
  User-Agent: aliyun-sdk-python/2.6.0(Windows/7/AMD64;3.7.0)
  Accept: text/html
  Connection: keep-alive
  date: Wed, 02 Jan 2019 13:28:38 GMT
  authorization: OSS qn6qrrqxo2oawuk53otfjbyc:zUglwRPGkbByZxm1+y4eyu+NIUs=zV0****
  Content-Length: 0

  Sample responses

  HTTP/1.1 204 No Content
  Server: AliyunOSS
  Date: Wed, 02 Jan 2019 13:28:38 GMT
  Content-Length: 0
  Connection: keep-alive
  x-oss-request-id: 5C2CBC8653718B5511EF4535
  x-oss-server-time: 134

• Delete an object from a versioned bucket without specifying a version ID.

  In this case, OSS adds a delete marker to the object and includes the x-oss-delete-marker=true header in the response.

  Sample requests

  DELETE /example HTTP/1.1
  Host: versioning-delete.oss-cn-hangzhou.aliyuncs.com
  Date: Tue, 09 Apr 2019 04:08:23 GMT
  Authorization: OSS twnetzwjkqr9eq6:z73SSKA6t2tNTP4GuPjPiyV/****

  Sample responses

  HTTP/1.1 204 NoContent
  x-oss-delete-marker: true
  x-oss-version-id: CAEQMxiBgIDh3ZCB0BYiIGE4YjIyMjExZDhhYjQxNzZiNGUyZTI4ZjljZDcz****
  x-oss-request-id: 5CAC1AB7B7AEADE01700****
  Date: Tue, 09 Apr 2019 04:08:23 GMT
  Connection: keep-alive
  Server: AliyunOSS

• Delete a version of the object from a versioned bucket by specifying the version ID.

  In this case, the specified version of the object is permanently deleted.

  Sample requests

  DELETE /example?versionId=CAEQOBiBgIDNlJeB0BYiIDAwYjJlNDQ4YjJkMzQxMmY5NTM5N2UzZWNiZTQ2**** HTTP/1.1
  Host: versioning-delete.oss-cn-hangzhou.aliyuncs.com
  Date: Tue, 09 Apr 2019 04:11:54 GMT
  Authorization: OSS gb3m2qiwirupd6v:UjOXBmIbJD3qXL+DP1EDNyCI****

  Sample responses

  HTTP/1.1 204 No Content
  x-oss-version-id: CAEQOBiBgIDNlJeB0BYiIDAwYjJlNDQ4YjJkMzQxMmY5NTM5N2UzZWNiZTQ2****
  x-oss-request-id: 5CAC1B8AB7AEADE01700****
  Date: Tue, 09 Apr 2019 04:11:54 GMT
  Content-Length: 0
  Connection: keep-alive
  Server: AliyunOSS

• Delete a delete marker from a versioned bucket by specifying the version ID of the delete marker.

  In the following example, the specified version is a delete marker. The x-oss-delete-marker=true header is included in the response.

  Sample requests

  DELETE /example?versionId=CAEQOBiBgIDNlJeB0BYiIDAwYjJlNDQ4YjJkMzQxMmY5NTM5N2UzZWNiZTQ2**** HTTP/1.1
  Host: versioning-delete.oss-cn-hangzhou.aliyuncs.com
  Date: Tue, 09 Apr 2019 04:16:25 GMT
  Authorization: OSS jh475i54ffozhoy:4tX6Z+fnhtINhp0g+sRiLEQb****

  Sample responses

  HTTP/1.1 204 No Content
  x-oss-delete-marker: true
  x-oss-version-id: CAEQNhiBgIDFtp.B0BYiIDk4NzgwMmU4NDMyOTQyM2NiMDQxOTcxYWNhMjc1****
  x-oss-request-id: 5CAC1C99B7AEADE01700****
  Date: Tue, 09 Apr 2019 04:16:25 GMT
  Content-Length: 0
  Connection: keep-alive
  Server: AliyunOSS

SDK

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

• Java
• Python
• PHP
• Go
• C
• .NET
• Android
• iOS
• Node.js
• Browser.js

Error codes