Canceling a Multipart Upload Task

Functions

You can call this API to cancel a multipart upload task. For details about the multipart upload, see Multipart Upload. You cannot upload or list parts after operations to merge parts or abort a multipart upload are performed.

Authorization Information

To call this API, you must be the bucket owner or have the permission to cancel a multipart upload task. 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:object:AbortMultipartUpload 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:object:abortMultipartUpload 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:object:abortMultipartUpload	Write	object * -	g:EnterpriseProjectId	-	-
    			obs:EpochTime obs:SourceIp obs:TlsVersion obs:CustomDomain

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

Request Syntax

1
2
3
4

DELETE /ObjectName?uploadId=uplaodID HTTP/1.1 
Host: bucketname.obs.region.myhuaweicloud.com 
Date: date
Authorization: auth

Request Parameters

This request uses message parameters to specify the multipart upload task number. Table 1 describes the parameters.

Request Headers

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

Request Elements

This request involves no elements.

Response Syntax

HTTP/1.1 status_code
Date: date

Response Headers

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

Response Elements

This response contains no elements.

Error Responses

1. If the AK or signature is invalid, OBS returns 403 Forbidden and the error code is AccessDenied.
2. If the requested bucket is not found, OBS returns 404 Not Found and the error code is NoSuchBucket.
3. If you are neither the initiator of a multipart upload nor the bucket owner, OBS returns 403 Forbidden.
4. If the operation is successful, OBS returns 204 No Content to the user.

Other errors are included in Table 2.

Sample Request

1
2
3
4
5
6

DELETE /object02?uploadId=00000163D46218698DF407362295674C HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.com
Accept: */*
Date: WED, 01 Jul 2015 05:28:27 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:QmM2d1DBXZ/b8drqtEv1QJHPbM0=

Sample Response

1
2
3
4
5

HTTP/1.1 204 No Content
Server: OBS
x-obs-request-id: 8DF400000163D463E02A07EC2295674C
x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCTp5YDlzn0UgqG3laRfkHLGyz7RpR9ON
Date: WED, 01 Jul 2015 05:28:27 GMT