List Multipart Uploads

s3_list_multipart_uploads

R Documentation

This operation lists in-progress multipart uploads in a bucket

Description

This operation lists in-progress multipart uploads in a bucket. An in-progress multipart upload is a multipart upload that has been initiated by the create_multipart_upload request, but has not yet been completed or aborted.

Directory buckets - If multipart uploads in a directory bucket are in progress, you can't delete the bucket until all the in-progress multipart uploads are aborted or completed. To delete these in-progress multipart uploads, use the list_multipart_uploads operation to list the in-progress multipart uploads in the bucket and use the AbortMultupartUpload operation to abort all the in-progress multipart uploads.

The list_multipart_uploads operation returns a maximum of 1,000 multipart uploads in the response. The limit of 1,000 multipart uploads is also the default value. You can further limit the number of uploads in a response by specifying the max-uploads request parameter. If there are more than 1,000 multipart uploads that satisfy your list_multipart_uploads request, the response returns an IsTruncated element with the value of true, a NextKeyMarker element, and a NextUploadIdMarker element. To list the remaining multipart uploads, you need to make subsequent list_multipart_uploads requests. In these requests, include two query parameters: key-marker and upload-id-marker. Set the value of key-marker to the NextKeyMarker value from the previous response. Similarly, set the value of upload-id-marker to the NextUploadIdMarker value from the previous response.

Directory buckets - The upload-id-marker element and the NextUploadIdMarker element aren't supported by directory buckets. To list the additional multipart uploads, you only need to set the value of key-marker to the NextKeyMarker value from the previous response.

For more information about 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://bucket_name.s3express-az_id.region.amazonaws.com/key-name ⁠. Path-style requests are not supported. For more information, see Regional and Zonal endpoints 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.

• Directory bucket permissions - To grant access to this API operation on a directory bucket, we recommend that you use the create_session 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 create_session 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 create_session 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 create_session .

Sorting of multipart uploads in response

• General purpose bucket - In the list_multipart_uploads response, the multipart uploads are sorted based on two criteria:

  • Key-based sorting - Multipart uploads are initially sorted in ascending order based on their object keys.

  • Time-based sorting - For uploads that share the same object key, they are further sorted in ascending order based on the upload initiation time. Among uploads with the same key, the one that was initiated first will appear before the ones that were initiated later.

• Directory bucket - In the list_multipart_uploads response, the multipart uploads aren't sorted lexicographically based on the object keys.

HTTP Host header syntax

Directory buckets - The HTTP Host header syntax is Bucket_name.s3express-az_id.region.amazonaws.com.

The following operations are related to list_multipart_uploads:

• create_multipart_upload

• upload_part

• complete_multipart_upload

• list_parts

• abort_multipart_upload

Usage

s3_list_multipart_uploads(Bucket, Delimiter, EncodingType, KeyMarker,
  MaxUploads, Prefix, UploadIdMarker, ExpectedBucketOwner, RequestPayer)

Arguments

Bucket

[required] The name of the bucket to which the multipart upload was initiated.

Directory buckets - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format Bucket_name.s3express-az_id.region.amazonaws.com. Path-style requests are not supported. Directory bucket names must be unique in the chosen Availability Zone. Bucket names must follow the format bucket_base_name--az-id--x-s3 (for example, DOC-EXAMPLE-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, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. 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.

Access points and Object Lambda access points are not supported by directory buckets.

S3 on Outposts - When you use 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 AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com. When you use this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts access point ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see What is S3 on Outposts? in the Amazon S3 User Guide.

Delimiter

Character you use to group keys.

All keys that contain the same string between the prefix, if specified, and the first occurrence of the delimiter after the prefix are grouped under a single result element, CommonPrefixes. If you don't specify the prefix parameter, then the substring starts at the beginning of the key. The keys that are grouped under CommonPrefixes result element are not returned elsewhere in the response.

Directory buckets - For directory buckets, / is the only supported delimiter.

EncodingType

KeyMarker

Specifies the multipart upload after which listing should begin.

• General purpose buckets - For general purpose buckets, key-marker is an object key. Together with upload-id-marker, this parameter specifies the multipart upload after which listing should begin.

  If upload-id-marker is not specified, only the keys lexicographically greater than the specified key-marker will be included in the list.

  If upload-id-marker is specified, any multipart uploads for a key equal to the key-marker might also be included, provided those multipart uploads have upload IDs lexicographically greater than the specified upload-id-marker.

• Directory buckets - For directory buckets, key-marker is obfuscated and isn't a real object key. The upload-id-marker parameter isn't supported by directory buckets. To list the additional multipart uploads, you only need to set the value of key-marker to the NextKeyMarker value from the previous response.

  In the list_multipart_uploads response, the multipart uploads aren't sorted lexicographically based on the object keys.

MaxUploads

Sets the maximum number of multipart uploads, from 1 to 1,000, to return in the response body. 1,000 is the maximum number of uploads that can be returned in a response.

Prefix

Lists in-progress uploads only for those keys that begin with the specified prefix. You can use prefixes to separate a bucket into different grouping of keys. (You can think of using prefix to make groups in the same way that you'd use a folder in a file system.)

Directory buckets - For directory buckets, only prefixes that end in a delimiter (/) are supported.

UploadIdMarker

Together with key-marker, specifies the multipart upload after which listing should begin. If key-marker is not specified, the upload-id-marker parameter is ignored. Otherwise, any multipart uploads for a key equal to the key-marker might be included in the list only if they have an upload ID lexicographically greater than the specified upload-id-marker.

This functionality is not supported for directory buckets.

ExpectedBucketOwner

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).

RequestPayer

Value

A list with the following syntax:

list(
  Bucket = "string",
  KeyMarker = "string",
  UploadIdMarker = "string",
  NextKeyMarker = "string",
  Prefix = "string",
  Delimiter = "string",
  NextUploadIdMarker = "string",
  MaxUploads = 123,
  IsTruncated = TRUE|FALSE,
  Uploads = list(
    list(
      UploadId = "string",
      Key = "string",
      Initiated = as.POSIXct(
        "2015-01-01"
      ),
      StorageClass = "STANDARD"|"REDUCED_REDUNDANCY"|"STANDARD_IA"|"ONEZONE_IA"|"INTELLIGENT_TIERING"|"GLACIER"|"DEEP_ARCHIVE"|"OUTPOSTS"|"GLACIER_IR"|"SNOW"|"EXPRESS_ONEZONE",
      Owner = list(
        DisplayName = "string",
        ID = "string"
      ),
      Initiator = list(
        ID = "string",
        DisplayName = "string"
      ),
      ChecksumAlgorithm = "CRC32"|"CRC32C"|"SHA1"|"SHA256"
    )
  ),
  CommonPrefixes = list(
    list(
      Prefix = "string"
    )
  ),
  EncodingType = "url",
  RequestCharged = "requester"
)

Request syntax

svc$list_multipart_uploads(
  Bucket = "string",
  Delimiter = "string",
  EncodingType = "url",
  KeyMarker = "string",
  MaxUploads = 123,
  Prefix = "string",
  UploadIdMarker = "string",
  ExpectedBucketOwner = "string",
  RequestPayer = "requester"
)

Examples

## Not run: 
# The following example lists in-progress multipart uploads on a specific
# bucket.
svc$list_multipart_uploads(
  Bucket = "examplebucket"
)

# The following example specifies the upload-id-marker and key-marker from
# previous truncated response to retrieve next setup of multipart uploads.
svc$list_multipart_uploads(
  Bucket = "examplebucket",
  KeyMarker = "nextkeyfrompreviousresponse",
  MaxUploads = "2",
  UploadIdMarker = "valuefrompreviousresponse"
)

## End(Not run)