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List Parts
Description
This operation lists the parts that have been uploaded for a specific multipart upload.
This operation must include the upload ID, which you obtain by sending the initiate
multipart upload request (see Initiate Multipart Upload). This request returns a maximum of 1,000
uploaded parts. The default number of parts returned is 1,000 parts. You can restrict
the number of parts returned by specifying the max-parts request parameter.
If your multipart upload consists of more than 1,000 parts, the response returns an
IsTruncated field with the value of true, and a
NextPartNumberMarker element. In subsequent List Parts requests you can
include the part-number-marker query string parameter and set its value to
the NextPartNumberMarker field value from the previous response.
For more information on multipart uploads, go to Uploading Objects Using Multipart Upload in the Amazon S3 Developer Guide.
For information on permissions required to use the multipart upload API, go to Multipart Upload API and Permissions in the Amazon S3 Developer Guide.
Requests
Syntax
GET /ObjectName?uploadId=UploadIdHTTP/1.1 Host:BucketName.s3.amazonaws.com Date:DateAuthorization:Signature
Request Parameters
This implementation of GET uses the parameters in the
following table to return a subset of the objects in a bucket.
| Parameter | Description | Required |
|---|---|---|
uploadId |
Upload ID identifying the multipart upload whose parts are being listed. Type: String Default: None | Yes |
max-parts |
Sets the maximum number of parts to return in the response body. Type: String Default: 1,000 | No |
part-number-marker |
Specifies the part after which listing should begin. Only parts with higher part numbers will be listed. Type: String Default: None | No |
Request Headers
This operation uses only Request Headers common to most requests. For more information, see Common Request Headers.
Request Elements
This operation does not use request elements.
Responses
Response Headers
This operation uses only response headers that are common to most responses. For more information, see Common Response Headers.
Response Elements
| Name | Description |
|---|---|
ListPartsResult
|
Container for the response. Children: Type: Container |
Bucket
|
Name of the bucket to which the multipart upload was initiated. Type: String Ancestor: |
Key
|
Object key for which the multipart upload was initiated. Type: String Ancestor: |
UploadId
|
Upload ID identifying the multipart upload whose parts are being listed. Type: String Ancestor: |
Initiator
|
Container element that identifies who initiated the multipart upload. If the
initiator is an AWS account, this element provides the same
information as the Children: Type: Container Ancestor: |
ID
|
If the principal is an AWS account, it provides the Canonical User ID. If the principal is an IAM User, it provides a user ARN value. Type: String Ancestor: |
DisplayName
|
Principal's name. Type: String Ancestor: |
Owner
|
Container element that identifies the object owner, after the object is created. If multipart upload is initiated by an IAM user, this element provides the parent account ID and display name. Children: Type: Container Ancestor: |
StorageClass
|
Class of storage ( Type: String Ancestor: |
PartNumberMarker
|
Part number after which listing begins. Type: Integer Ancestor: |
NextPartNumberMarker
|
When a list is truncated, this element specifies the last part in the list, as well
as the value to use for the
Type: Integer Ancestor: |
MaxParts
|
Maximum number of parts that were allowed in the response. Type: Integer Ancestor: |
IsTruncated
|
Indicates whether the returned list of parts is truncated. A
Type: Boolean Ancestor: |
Part
|
Container for elements related to a particular part. A response can contain zero or
more Children: Type: String Ancestor: |
PartNumber
|
Part number identifying the part. Type: Integer Ancestor: |
LastModified
|
Date and time at which the part was uploaded. Type: Date Ancestor: |
ETag
|
Entity tag returned when the part was uploaded. Type: String Ancestor: |
Size
|
Size of the uploaded part data. Type: Integer Ancestor: |
Examples
Sample Request
Assume you have uploaded parts with sequential part numbers starting with 1. The following
List Parts request specifies max-parts and
part-number-marker query parameters. The request lists
the first two parts that follow part number 1, that is, you will get parts 2 and 3
in the response. If more parts exist , the result is a truncated result and
therefore the response will return an IsTruncated element
with the value true. The response will also return the
NextPartNumberMarker element with the value 3, which
should be used for the value of the part-number-marker
request query string parameter in the next List Parts request.
GET /example-object?uploadId=XXBsb2FkIElEIGZvciBlbHZpbmcncyVcdS1tb3ZpZS5tMnRzEEEwbG9hZA&max-parts=2&part-number-marker=1 HTTP/1.1 Host: example-bucket.s3.amazonaws.com Date: Mon, 1 Nov 2010 20:34:56 GMT Authorization: AWS AKIAIOSFODNN7EXAMPLE:0RQf4/cRonhpaBX5sCYVf1bNRuU=
Sample Response
The following is a sample response.
HTTP/1.1 200 OK
x-amz-id-2: Uuag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg==
x-amz-request-id: 656c76696e6727732072657175657374
Date: Mon, 1 Nov 2010 20:34:56 GMT
Content-Length: 985
Connection: keep-alive
Server: AmazonS3
<?xml version="1.0" encoding="UTF-8"?>
<ListPartsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<Bucket>example-bucket</Bucket>
<Key>example-object</Key>
<UploadId>XXBsb2FkIElEIGZvciBlbHZpbmcncyVcdS1tb3ZpZS5tMnRzEEEwbG9hZA</UploadId>
<Initiator>
<ID>arn:aws:iam::111122223333:user/some-user-11116a31-17b5-4fb7-9df5-b288870f11xx</ID>
<DisplayName>umat-user-11116a31-17b5-4fb7-9df5-b288870f11xx</DisplayName>
</Initiator>
<Owner>
<ID>75aa57f09aa0c8caeab4f8c24e99d10f8e7faeebf76c078efc7c6caea54ba06a</ID>
<DisplayName>someName</DisplayName>
</Owner>
<StorageClass>STANDARD</StorageClass>
<PartNumberMarker>1</PartNumberMarker>
<NextPartNumberMarker>3</NextPartNumberMarker>
<MaxParts>2</MaxParts>
<IsTruncated>true</IsTruncated>
<Part>
<PartNumber>2</PartNumber>
<LastModified>2010-11-10T20:48:34.000Z</LastModified>
<ETag>"7778aef83f66abc1fa1e8477f296d394"</ETag>
<Size>10485760</Size>
</Part>
<Part>
<PartNumber>3</PartNumber>
<LastModified>2010-11-10T20:48:33.000Z</LastModified>
<ETag>"aaaa18db4cc2f85cedef654fccc4a4x8"</ETag>
<Size>10485760</Size>
</Part>
</ListPartsResult>
