ListPartsCommand

Lists the parts that have been uploaded for a specific multipart upload.

To use this operation, you must provide the upload ID in the request. You obtain this uploadID by sending the initiate multipart upload request through CreateMultipartUpload .

The ListParts request returns a maximum of 1,000 uploaded parts. The limit of 1,000 parts is also the default value. You can restrict the number of parts in a response 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. To list remaining uploaded parts, in subsequent ListParts requests, 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, see Uploading Objects Using Multipart Upload  in the Amazon S3 User Guide.

Directory buckets - For directory buckets, you must make requests for this API operation to the Zonal endpoint. These endpoints support virtual-hosted-style requests in the format https://amzn-s3-demo-bucket.s3express-zone-id.region-code.amazonaws.com/key-name . Path-style requests are not supported. For more information about endpoints in Availability Zones, see Regional and Zonal endpoints for directory buckets in Availability Zones  in the Amazon S3 User Guide. For more information about endpoints in Local Zones, see Concepts for directory buckets in Local Zones  in the Amazon S3 User Guide.

Permissions
  • General purpose bucket permissions - For information about permissions required to use the multipart upload API, see Multipart Upload and Permissions  in the Amazon S3 User Guide.

    If the upload was created using server-side encryption with Key Management Service (KMS) keys (SSE-KMS) or dual-layer server-side encryption with Amazon Web Services KMS keys (DSSE-KMS), you must have permission to the kms:Decrypt action for the ListParts request to succeed.

  • Directory bucket permissions - To grant access to this API operation on a directory bucket, we recommend that you use the CreateSession   API operation for session-based authorization. Specifically, you grant the s3express:CreateSession permission to the directory bucket in a bucket policy or an IAM identity-based policy. Then, you make the CreateSession API call on the bucket to obtain a session token. With the session token in your request header, you can make API requests to this operation. After the session token expires, you make another CreateSession API call to generate a new session token for use. Amazon Web Services CLI or SDKs create session and refresh the session token automatically to avoid service interruptions when a session expires. For more information about authorization, see CreateSession  .

HTTP Host header syntax

Directory buckets - The HTTP Host header syntax is Bucket-name.s3express-zone-id.region-code.amazonaws.com.

The following operations are related to ListParts:

Example Syntax

Use a bare-bones client and the command you need to make an API call.

import { S3Client, ListPartsCommand } from "@aws-sdk/client-s3"; // ES Modules import
// const { S3Client, ListPartsCommand } = require("@aws-sdk/client-s3"); // CommonJS import
const client = new S3Client(config);
const input = { // ListPartsRequest
  Bucket: "STRING_VALUE", // required
  Key: "STRING_VALUE", // required
  MaxParts: Number("int"),
  PartNumberMarker: "STRING_VALUE",
  UploadId: "STRING_VALUE", // required
  RequestPayer: "requester",
  ExpectedBucketOwner: "STRING_VALUE",
  SSECustomerAlgorithm: "STRING_VALUE",
  SSECustomerKey: "STRING_VALUE",
  SSECustomerKeyMD5: "STRING_VALUE",
};
const command = new ListPartsCommand(input);
const response = await client.send(command);
// { // ListPartsOutput
//   AbortDate: new Date("TIMESTAMP"),
//   AbortRuleId: "STRING_VALUE",
//   Bucket: "STRING_VALUE",
//   Key: "STRING_VALUE",
//   UploadId: "STRING_VALUE",
//   PartNumberMarker: "STRING_VALUE",
//   NextPartNumberMarker: "STRING_VALUE",
//   MaxParts: Number("int"),
//   IsTruncated: true || false,
//   Parts: [ // Parts
//     { // Part
//       PartNumber: Number("int"),
//       LastModified: new Date("TIMESTAMP"),
//       ETag: "STRING_VALUE",
//       Size: Number("long"),
//       ChecksumCRC32: "STRING_VALUE",
//       ChecksumCRC32C: "STRING_VALUE",
//       ChecksumCRC64NVME: "STRING_VALUE",
//       ChecksumSHA1: "STRING_VALUE",
//       ChecksumSHA256: "STRING_VALUE",
//     },
//   ],
//   Initiator: { // Initiator
//     ID: "STRING_VALUE",
//     DisplayName: "STRING_VALUE",
//   },
//   Owner: { // Owner
//     DisplayName: "STRING_VALUE",
//     ID: "STRING_VALUE",
//   },
//   StorageClass: "STANDARD" || "REDUCED_REDUNDANCY" || "STANDARD_IA" || "ONEZONE_IA" || "INTELLIGENT_TIERING" || "GLACIER" || "DEEP_ARCHIVE" || "OUTPOSTS" || "GLACIER_IR" || "SNOW" || "EXPRESS_ONEZONE",
//   RequestCharged: "requester",
//   ChecksumAlgorithm: "CRC32" || "CRC32C" || "SHA1" || "SHA256" || "CRC64NVME",
//   ChecksumType: "COMPOSITE" || "FULL_OBJECT",
// };

Example Usage

 Loading code editor

ListPartsCommand Input

See ListPartsCommandInput for more details

Parameter
Type
Description
Bucket
Required
string | undefined

The name of the bucket to which the parts are being uploaded.

Directory buckets - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format Bucket-name.s3express-zone-id.region-code.amazonaws.com. Path-style requests are not supported. Directory bucket names must be unique in the chosen Zone (Availability Zone or Local Zone). Bucket names must follow the format bucket-base-name--zone-id--x-s3 (for example, amzn-s3-demo-bucket--usw2-az1--x-s3). For information about bucket naming restrictions, see Directory bucket naming rules  in the Amazon S3 User Guide.

Access points - When you use this action with an access point for general purpose buckets, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. When you use this action with an access point for directory buckets, you must provide the access point name in place of the bucket name. When using the access point ARN, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName-AccountId.s3-accesspoint.Region.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 Using access points  in the Amazon S3 User Guide.

Object Lambda access points are not supported by directory buckets.

S3 on Outposts - When you use this action with S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com. When you use this action with S3 on Outposts, the destination bucket must be the Outposts access point ARN or the access point alias. For more information about S3 on Outposts, see What is S3 on Outposts?  in the Amazon S3 User Guide.

Note: To supply the Multi-region Access Point (MRAP) to Bucket, you need to install the "aws-sdk/signature-v4-crt" package to your project dependencies. For more information, please go to https://github.com/aws/aws-sdk-js-v3#known-issues

Key
Required
string | undefined

Object key for which the multipart upload was initiated.

UploadId
Required
string | undefined

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

ExpectedBucketOwner
string | undefined

The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code 403 Forbidden (access denied).

MaxParts
number | undefined

Sets the maximum number of parts to return.

PartNumberMarker
string | undefined

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

RequestPayer
RequestPayer | undefined

Confirms that the requester knows that they will be charged for the request. Bucket owners need not specify this parameter in their requests. If either the source or destination S3 bucket has Requester Pays enabled, the requester will pay for corresponding charges to copy the object. For information about downloading objects from Requester Pays buckets, see Downloading Objects in Requester Pays Buckets  in the Amazon S3 User Guide.

This functionality is not supported for directory buckets.

SSECustomerAlgorithm
string | undefined

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 Protecting data using SSE-C keys  in the Amazon S3 User Guide.

This functionality is not supported for directory buckets.

SSECustomerKey
string | undefined

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 Protecting data using SSE-C keys  in the Amazon S3 User Guide.

This functionality is not supported for directory buckets.

SSECustomerKeyMD5
string | undefined

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 Protecting data using SSE-C keys  in the Amazon S3 User Guide.

This functionality is not supported for directory buckets.

ListPartsCommand Output

See ListPartsCommandOutput for details

Parameter
Type
Description
$metadata
Required
ResponseMetadata
Metadata pertaining to this request.
AbortDate
Date | undefined

If the bucket has a lifecycle rule configured with an action to abort incomplete multipart uploads and the prefix in the lifecycle rule matches the object name in the request, then the response includes this header indicating when the initiated multipart upload will become eligible for abort operation. For more information, see Aborting Incomplete Multipart Uploads Using a Bucket Lifecycle Configuration .

The response will also include the x-amz-abort-rule-id header that will provide the ID of the lifecycle configuration rule that defines this action.

This functionality is not supported for directory buckets.

AbortRuleId
string | undefined

This header is returned along with the x-amz-abort-date header. It identifies applicable lifecycle configuration rule that defines the action to abort incomplete multipart uploads.

This functionality is not supported for directory buckets.

Bucket
string | undefined

The name of the bucket to which the multipart upload was initiated. Does not return the access point ARN or access point alias if used.

ChecksumAlgorithm
ChecksumAlgorithm | undefined

The algorithm that was used to create a checksum of the object.

ChecksumType
ChecksumType | undefined

The checksum type, which determines how part-level checksums are combined to create an object-level checksum for multipart objects. You can use this header response to verify that the checksum type that is received is the same checksum type that was specified in CreateMultipartUpload request. For more information, see Checking object integrity in the Amazon S3 User Guide .

Initiator
Initiator | undefined

Container element that identifies who initiated the multipart upload. If the initiator is an Amazon Web Services account, this element provides the same information as the Owner element. If the initiator is an IAM User, this element provides the user ARN and display name.

IsTruncated
boolean | undefined

Indicates whether the returned list of parts is truncated. A true value indicates that the list was truncated. A list can be truncated if the number of parts exceeds the limit returned in the MaxParts element.

Key
string | undefined

Object key for which the multipart upload was initiated.

MaxParts
number | undefined

Maximum number of parts that were allowed in the response.

NextPartNumberMarker
string | undefined

When a list is truncated, this element specifies the last part in the list, as well as the value to use for the part-number-marker request parameter in a subsequent request.

Owner
Owner | undefined

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.

Directory buckets - The bucket owner is returned as the object owner for all the parts.

PartNumberMarker
string | undefined

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

Parts
Part[] | undefined

Container for elements related to a particular part. A response can contain zero or more Part elements.

RequestCharged
RequestCharged | undefined

If present, indicates that the requester was successfully charged for the request.

This functionality is not supported for directory buckets.

StorageClass
StorageClass | undefined

The class of storage used to store the uploaded object.

Directory buckets - Directory buckets only support EXPRESS_ONEZONE (the S3 Express One Zone storage class) in Availability Zones and ONEZONE_IA (the S3 One Zone-Infrequent Access storage class) in Dedicated Local Zones.

UploadId
string | undefined

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

Throws

Name
Fault
Details
S3ServiceException
Base exception class for all service exceptions from S3 service.