Updated on 2026-08-14 GMT+08:00

Aborting a Multipart Upload

Function

This API is used to abort a multipart upload using the multipart upload ID.

After a multipart upload is aborted, the upload ID cannot be used to upload any part, and the space occupied by all uploaded parts will be freed up. If any parts are being uploaded when you abort the upload, they may or may not be uploaded successfully. To free up the space occupied by all uploaded parts, you must abort the multipart upload after all parts have been uploaded.

If you have any questions during development, post them on the Issues page of GitHub. For details about parameters and usage of each API, see the API Reference.

Restrictions

Method

ObsClient.abortMultipartUpload(params)

Request Parameters

Table 1 List of request parameters

Parameter

Type

Mandatory (Yes/No)

Description

Bucket

String

Yes

Explanation:

Bucket name

Restrictions:

  • A bucket name must be unique across all accounts and regions.
  • A bucket name:
    • Must be 3 to 63 characters long and start with a digit or letter. Lowercase letters, digits, hyphens (-), and periods (.) are allowed.
    • Cannot be formatted as an IP address.
    • Cannot start or end with a hyphen (-) or period (.).
    • Cannot contain two consecutive periods (..), for example, my..bucket.
    • Cannot contain a period (.) and a hyphen (-) adjacent to each other, for example, my-.bucket or my.-bucket.
  • If you repeatedly create buckets with the same name in the same region, no error will be reported and the bucket properties comply with those set in the first creation request.

Default value:

None

Key

String

Yes

Explanation:

Object name. An object is uniquely identified by an object name in a bucket. An object name is a complete path of the object that does not contain the bucket name.

For example, if the address for accessing the object is examplebucket.obs.ap-southeast-1.myhuaweicloud.com/folder/test.txt, the object name is folder/test.txt.

Value range:

The value must contain 1 to 1,024 characters.

Default value:

None

NOTE:

The object URL is in the following format: https://Bucket name.Domain name/Folder directory level/Object name. If this object is stored in the root directory of the bucket, its URL does not contain the folder directory level.

RequestDate

String

or

Date

No

Explanation:

Request time

NOTE:

When the parameter type is String, the value must comply with the ISO8601 or RFC822 standard.

UploadId

String

Yes

Explanation:

Multipart upload ID, for example, 000001648453845DBB78F2340DD460D8

Value range:

The value must contain 32 characters.

Default value:

None

Responses

Table 2 ICommonMsg

Parameter

Type

Description

Status

number

Explanation:

HTTP status code returned by the OBS server

Value range:

A status code is a group of digits indicating the status of a response. It ranges from 2xx (indicating successes) to 4xx or 5xx (indicating errors). For details, see Status Codes.

Code

string

Explanation:

Error code returned by the OBS server

Message

string

Explanation:

Error description returned by the OBS server

HostId

string

Explanation:

Request server ID returned by the OBS server

RequestId

string

Explanation:

Request ID returned by the OBS server

Id2

string

Explanation:

Request ID2 returned by the OBS server

Indicator

string

Explanation:

Error code details returned by the OBS server

Sample Code

After a multipart upload is aborted, you cannot use its upload ID to perform any operation and the uploaded parts will be deleted by OBS.

When an object is being uploaded or fails to be uploaded in multipart mode, parts are generated in the bucket. These parts occupy your storage space. You can abort the multipart upload to delete unnecessary parts, thereby saving the storage space.

You can call ObsClient.abortMultipartUpload to abort a multipart upload.

// Create an ObsClient instance.
var obsClient = new ObsClient({
    // Hard-coded or plaintext AK and SK are risky. For security purposes, encrypt your AK and SK before storing them in the configuration file or environment variables. In this example, the AK and SK are stored in environment variables. Before running the code in this example, configure environment variables AccessKeyID and SecretAccessKey.
    // The front-end code does not have the process environment variable, so you need to use a module bundler like webpack to define the process variable.
    // Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
    access_key_id: process.env.AccessKeyID,
    secret_access_key: process.env.SecretAccessKey,
    // CN-Hong Kong is used here in this example. Replace it with the one currently in use.
    server: 'https://obs.ap-southeast-1.myhuaweicloud.com'
});

obsClient.abortMultipartUpload({
       Bucket:'bucketname',
       Key:'objectname',
       // Set the upload ID.
       UploadId:'upload id from initiateMultipartUpload',
}, function (err, result) {
       if(err){
              console.log('Error-->' + err);
       }else{
              console.log('Status-->' + result.CommonMsg.Status);
       }
});