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v1

latestOpenAPI 3.0.0Apache 2.0 License2026-07-1497574737.9 KB

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 CreateMultipartUpload). 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 ListParts requests you can include the part-number-marker query string parameter and set its value to the NextPartNumberMarker field value from the previous response.

If the upload was created using a checksum algorithm, you will need to have permission to the kms:Decrypt action for the request to succeed.

For more information on multipart uploads, see Uploading Objects Using Multipart Upload.

For information on permissions required to use the multipart upload API, see Multipart Upload and Permissions.

The following operations are related to ListParts:

get/{Bucket}/{Key}#uploadId

Path parameters

Bucketstring required
<p>The name of the bucket to which the parts are being uploaded. </p> <p>When using this action with an access point, you must direct requests to the access point hostname. The access point hostname takes the form <i>AccessPointName</i>-<i>AccountId</i>.s3-accesspoint.<i>Region</i>.amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/userguide/using-access-points.html">Using access points</a> in the <i>Amazon S3 User Guide</i>.</p> <p>When using this action with Amazon S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form <code> <i>AccessPointName</i>-<i>AccountId</i>.<i>outpostID</i>.s3-outposts.<i>Region</i>.amazonaws.com</code>. When using this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/userguide/S3onOutposts.html">Using Amazon S3 on Outposts</a> in the <i>Amazon S3 User Guide</i>.</p>
Keystring required

Object key for which the multipart upload was initiated.

Query parameters

max-partsinteger

Sets the maximum number of parts to return.

part-number-markerinteger

Specifies the part after which listing should begin. Only parts with higher part numbers will be listed.

uploadIdstring required

Upload ID identifying the multipart upload whose parts are being listed.

MaxPartsstring

Pagination limit

PartNumberMarkerstring

Pagination token

Headers

x-amz-request-payer'requester'

Confirms that the requester knows that they will be charged for the request. Bucket owners need not specify this parameter in their requests. For information about downloading objects from Requester Pays buckets, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectsinRequesterPaysBuckets.html">Downloading Objects in Requester Pays Buckets</a> in the <i>Amazon S3 User Guide</i>.

x-amz-expected-bucket-ownerstring

The account ID of the expected bucket owner. If the bucket is owned by a different account, the request fails with the HTTP status code <code>403 Forbidden</code> (access denied).

x-amz-server-side-encryption-customer-algorithmstring

The server-side encryption (SSE) algorithm used to encrypt the object. This parameter is needed only when the object was created using a checksum algorithm. For more information, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/ServerSideEncryptionCustomerKeys.html">Protecting data using SSE-C keys</a> in the <i>Amazon S3 User Guide</i>.

x-amz-server-side-encryption-customer-keystring password

The server-side encryption (SSE) customer managed key. This parameter is needed only when the object was created using a checksum algorithm. For more information, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/ServerSideEncryptionCustomerKeys.html">Protecting data using SSE-C keys</a> in the <i>Amazon S3 User Guide</i>.

x-amz-server-side-encryption-customer-key-MD5string

The MD5 server-side encryption (SSE) customer managed key. This parameter is needed only when the object was created using a checksum algorithm. For more information, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/ServerSideEncryptionCustomerKeys.html">Protecting data using SSE-C keys</a> in the <i>Amazon S3 User Guide</i>.

Response

Success

All 97 operations