Help Center/ Object Storage Service/ API Reference/ APIs/ Operations on Multipart Upload/ Listing Uploaded Parts that Have Not Been Assembled
Updated on 2024-09-29 GMT+08:00

Listing Uploaded Parts that Have Not Been Assembled

Functions

You can use this API to query all parts of an uncompleted multipart upload task. The size of each part listed by this API is the same as the size of the part uploaded.

Request Syntax

GET /ObjectName?uploadId=uploadid&max-parts=max&part-number-marker=marker HTTP/1.1 
Host: bucketname.obs.region.myhuaweicloud.com 
Date: date 
Authorization: auth

Request Parameters

This request uses parameters to specify which parts in a multipart upload will be listed. Table 1 describes the parameters.

Table 1 Request parameters

Parameter

Description

Mandatory

uploadId

ID of the multipart upload

Type: string

Default value: none

Yes

max-parts

Maximum number of parts that can be listed

Type: integer

Default value: 1,000

No

part-number

-marker

Part after which the part listing begins. OBS lists only parts with greater numbers than that specified by this parameter.

Type: integer

Default value: none

No

encoding-type

Encoding type for Key in the response. If Key in the response contains control characters that are not supported by the XML 1.0 standard, you can specify this parameter to encode Key.

Type: string

Default value: none

Value option: url

No

Request Headers

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

Request Elements

This request involves no elements.

Response Syntax

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

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<ListPartsResult xmlns="http://obs.region.myhuaweicloud.com/doc/2015-06-30/">
    <Bucket>BucketName</Bucket> 
    <Key>object</Key> 
    <UploadId>uploadid</UploadId> 
    <Initiator> 
        <ID>id</ID>  
    </Initiator> 
    <Owner> 
        <ID>ownerid</ID> 
    </Owner> 
    <StorageClass>storageclass</StorageClass> 
    <PartNumberMarker>partNmebermarker</PartNumberMarker> 
    <NextPartNumberMarker>nextPartnumberMarker</NextPartNumberMarker> 
    <MaxParts>maxParts</MaxParts> 
    <IsTruncated>true</IsTruncated> 
    <Part> 
        <PartNumber>partNumber</PartNumber> 
        <LastModified>modifiedDate</LastModified> 
        <ETag>etag</ETag> 
        <Size>size</Size> 
    </Part> 
</ListPartsResult>

Response Headers

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

Response Elements

This response uses elements to return information about uploaded parts. Table 2 describes the elements.

Table 2 Response elements

Element

Description

ListPartsResult

Container for responses to part listing requests

Type: container

Child: Bucket, Key, UploadId, PartNumberMarker, NextPartNumberMarker, MaxParts, IsTruncated, and Part

Parent: none

Bucket

Name of the bucket

Type: string

Parent: ListPartsResult

EncodingType

Encoding type of an object key. If encoding-type is specified in the request, the Key in the response is encoded.

Type: string

Parent: ListPartsResult

Key

Object name

Type: string

Parent: ListPartsResult

UploadId

ID of the multipart upload

Type: string

Parent: ListPartsResult

Initiator

Initiator of the multipart upload

Type: container

Child: ID

Parent: ListPartsResult

Owner

The value of this parameter is the same as that of Initiator.

Type: container

Child: ID

Parent: ListPartsResult

ID

ID of the domain where the owner belongs

Type: string

Parent: Initiator or Owner

StorageClass

Storage class

Type: string

Value options: STANDARD, WARM, COLD

Parent: ListPartsResult

PartNumberMarker

Part number after which listing parts begins

Type: integer

Parent: ListPartsResult

NextPartNumberMarker

Value of PartNumberMarker in the next request when the returned result is incomplete

Type: integer

Parent: ListPartsResult

MaxParts

Maximum number of parts returned in a response

Type: integer

Parent: ListPartsResult

IsTruncated

Whether the returned part list is truncated. The value true indicates that the list was truncated and false indicates that the list was not truncated.

Type: boolean

Parent: ListPartsResult

Part

Container for elements related to a particular part.

Type: string

Child: PartNumber, LastModified, ETag, and Size

Parent: ListPartsResult

PartNumber identifies a part.

PartNumber

Number of an uploaded part

Type: integer

Parent: ListPartsResult.Part

LastModified

When a part was uploaded

Type: date

Parent: ListPartsResult.Part

ETag

ETag value of the uploaded parts. It is the unique identifier of the part content and is used to verify data consistency during the combination of parts.

Type: string

Parent: ListPartsResult.Part

Size

Size of an uploaded part

Type: integer

Parent: ListPartsResult.Part

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 the requested multipart upload task does not exist, OBS returns 404 Not Found and the error code is NoSuchUpload.
  4. OBS determines whether the use's domain ID has the read permission for the specified bucket. If the user does not have the permission, OBS returns 403 Forbidden and the error code is AccessDenied.

Other errors are included in Table 2.

Sample Request

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GET /object02?uploadId=00000163D40171ED8DF4050919BD02B8 HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.com
Accept: */*
Date: WED, 01 Jul 2015 05:20:35 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:xkABdSrBPrz5yqzuZdJnK5oL/yU=

Sample Response

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HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: 8DF400000163D40C099A04EF4DD1BDD9
x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSK71fr+hDnzB0JBvQC1B9+S12AWxC41
Content-Type: application/xml
Date: WED, 01 Jul 2015 05:20:35 GMT
Content-Length: 888

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ListPartsResult xmlns="http://obs.ap-southeast-1.myhuaweicloud.com/doc/2015-06-30/">
  <Bucket>test333</Bucket>
  <Key>obj2</Key>
  <UploadId>00000163D40171ED8DF4050919BD02B8</UploadId>
  <Initiator>
    <ID>domainID/domainiddomainiddomainiddo000008:userID/useriduseriduseriduseridus000008</ID>
  </Initiator>
  <Owner>
    <ID>domainiddomainiddomainiddo000008</ID>
  </Owner>
  <StorageClass>STANDARD</StorageClass>
  <PartNumberMarker>0</PartNumberMarker>
  <NextPartNumberMarker>2</NextPartNumberMarker>
  <MaxParts>1000</MaxParts>
  <IsTruncated>false</IsTruncated>
  <Part>
    <PartNumber>1</PartNumber>
    <LastModified>2018-06-06T07:39:32.522Z</LastModified>
    <ETag>"b026324c6904b2a9cb4b88d6d61c81d1"</ETag>
    <Size>2058462721</Size>
  </Part>
  <Part>
    <PartNumber>2</PartNumber>
    <LastModified>2018-06-06T07:41:03.344Z</LastModified>
    <ETag>"3b46eaf02d3b6b1206078bb86a7b7013"</ETag>
    <Size>4572</Size>
  </Part>
</ListPartsResult>