Lists all parts that are uploaded by using a specified upload ID.

Usage notes

  • The results returned by Object Storage Service (OSS) are listed in ascending order of part numbers.
  • Errors may occur during network transmission. Therefore, to generate the list of uploaded parts, we recommend that you do not use the part numbers and ETag values in the results of the ListParts operation.

Request syntax

Get  /ObjectName?uploadId=UploadId HTTP/1.1
Host: BucketName.oss-cn-hangzhou.aliyuncs.com
Date: GMT Date
Authorization: Signature

Request headers

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

Request parameters

Parameter Type Example Description
uploadId String 0004B999EF5A239BB9138C6227D69F95 The ID of the multipart upload task.

Default value: null
max-parts Integer 1000 The maximum number of parts that can be returned by OSS.

Default value: 1000

Maximum value: 1000
part-number-marker Integer 100 The position from which the list starts. All parts whose part numbers are greater than the value of this parameter are listed.

Default value: null
encoding-type String url The encoding type of the object name in the response. The object name can contain any characters encoded in UTF-8. However, the XML 1.0 standard cannot be used to parse certain control characters, such as characters with an ASCII value from 0 to 10. You can specify the Encoding-type parameter to encode the returned object name.

Default value: null

Valid value: url

Response headers

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

Response elements

Element Type Example Description
ListPartsResult Container N/A The container that stores the response of the ListParts request.

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

Parent nodes: none
Bucket String multipart_upload The name of the bucket.

Parent nodes: ListPartsResult
EncodingType String url The encoding type of the object name in the response. If the Encoding-type parameter is specified in the request, the object name in the response is encoded.

Parent nodes: ListPartsResult
Key String multipart.data The name of the object.

Parent nodes: ListPartsResult
UploadId String 0004B999EF5A239BB9138C6227D69F95 The ID of the upload task.

Parent nodes: ListPartsResult
PartNumberMarker Integer 10 The position from which the list starts. All parts whose part numbers are greater than the value of this parameter are listed.

Parent nodes: ListPartsResult
NextPartNumberMarker Integer 5 The NextPartNumberMarker value that is used for the PartNumberMarker value in a subsequent request when the response does not contain all required results.

Parent nodes: ListPartsResult
MaxParts Integer 1000 The maximum number of parts in the response.

Parent nodes: ListPartsResult
IsTruncated Enumerated string false Indicates whether the list of parts returned in the response has been truncated. A value of true indicates that the response does not contain all required results. A value of false indicates that the response contains all required results.

Valid values: true and false

Parent nodes: ListPartsResult
Part Container N/A The container that stores the information about parts.

Child nodes: PartNumber, LastModified, ETag, and Size

Parent nodes: ListPartsResult
PartNumber Integer 1 The number that identifies a part.

Parent nodes: ListPartsResult.Part
LastModified Date 2012-02-23T07:01:34.000Z The time when the part was uploaded.

Parent nodes: ListPartsResult.Part
ETag String 3349DC700140D7F86A0784842780**** The ETag value of the content of the uploaded part.

Parent nodes: ListPartsResult.Part
Size Integer 6291456 The size of the uploaded parts.

Parent nodes: ListPartsResult.Part

Examples

Sample request

Get  /multipart.data?uploadId=0004B999EF5A239BB9138C6227D6****  HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Thu, 23 Feb 2012 07:13:28 GMT
Authorization: OSS qn6qrrqxo2oawuk53otf****:4qOnUMc9UQWqkz8wDqD3lIsa****

Sample response

HTTP/1.1 200 
Server: AliyunOSS
Connection: keep-alive
Content-length: 1221
Content-type: application/xml
x-oss-request-id: 106452c8-10ff-812d-736e-c865294afc1c
Date: Thu, 23 Feb 2012 07:13:28 GMT

<?xml version="1.0" encoding="UTF-8"?>
<ListPartsResult xmlns="http://doc.oss-cn-hangzhou.aliyuncs.com">
    <Bucket>multipart_upload</Bucket>
    <Key>multipart.data</Key>
    <UploadId>0004B999EF5A239BB9138C6227D6****</UploadId>
    <NextPartNumberMarker>5</NextPartNumberMarker>
    <MaxParts>1000</MaxParts>
    <IsTruncated>false</IsTruncated>
    <Part>
        <PartNumber>1</PartNumber>
        <LastModified>2012-02-23T07:01:34.000Z</LastModified>
        <ETag>"3349DC700140D7F86A0784842780****"</ETag>
        <Size>6291456</Size>
    </Part>
    <Part>
        <PartNumber>2</PartNumber>
        <LastModified>2012-02-23T07:01:12.000Z</LastModified>
        <ETag>"3349DC700140D7F86A0784842780****"</ETag>
        <Size>6291456</Size>
    </Part>
    <Part>
        <PartNumber>5</PartNumber>
        <LastModified>2012-02-23T07:02:03.000Z</LastModified>
        <ETag>"7265F4D211B56873A381D321F586****"</ETag>
        <Size>1024</Size>
    </Part>
</ListPartsResult>

SDKs

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