UploadPartCopy
Uploads a part by copying data from an existing object as data source. To specify the
data source, you add the request header x-amz-copy-source
in your request. To
specify a byte range, you add the request header x-amz-copy-source-range
in
your request.
For information about maximum and minimum part sizes and other multipart upload specifications, see Multipart upload limits in the Amazon S3 User Guide.
Note
Instead of copying data from an existing object as part data, you might use the UploadPart action to upload new data as a part of an object in your request.
You must initiate a multipart upload before you can upload any part. In response to your initiate request, Amazon S3 returns the upload ID, a unique identifier that you must include in your upload part request.
For conceptual information about multipart uploads, see Uploading Objects Using Multipart Upload in the Amazon S3 User Guide. For information about copying objects using a single atomic action vs. a multipart upload, see Operations on Objects in the Amazon S3 User Guide.
Note
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-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 Available Local Zone for directory buckets in the
Amazon S3 User Guide.
- Authentication and authorization
-
All
UploadPartCopy
requests must be authenticated and signed by using IAM credentials (access key ID and secret access key for the IAM identities). All headers with thex-amz-
prefix, includingx-amz-copy-source
, must be signed. For more information, see REST Authentication.Directory buckets - You must use IAM credentials to authenticate and authorize your access to the
UploadPartCopy
API operation, instead of using the temporary security credentials through theCreateSession
API operation.Amazon CLI or SDKs handles authentication and authorization on your behalf.
- Permissions
-
You must have
READ
access to the source object andWRITE
access to the destination bucket.-
General purpose bucket permissions - You must have the permissions in a policy based on the bucket types of your source bucket and destination bucket in an
UploadPartCopy
operation.-
If the source object is in a general purpose bucket, you must have the
s3:GetObject
permission to read the source object that is being copied. -
If the destination bucket is a general purpose bucket, you must have the
s3:PutObject
permission to write the object copy to the destination bucket. -
To perform a multipart upload with encryption using an Amazon Key Management Service key, the requester must have permission to the
kms:Decrypt
andkms:GenerateDataKey
actions on the key. The requester must also have permissions for thekms:GenerateDataKey
action for theCreateMultipartUpload
API. Then, the requester needs permissions for thekms:Decrypt
action on theUploadPart
andUploadPartCopy
APIs. These permissions are required because Amazon S3 must decrypt and read data from the encrypted file parts before it completes the multipart upload. For more information about KMS permissions, see Protecting data using server-side encryption with Amazon KMS in the Amazon S3 User Guide. For information about the permissions required to use the multipart upload API, see Multipart upload and permissions and Multipart upload API and permissions in the Amazon S3 User Guide.
-
-
Directory bucket permissions - You must have permissions in a bucket policy or an IAM identity-based policy based on the source and destination bucket types in an
UploadPartCopy
operation.-
If the source object that you want to copy is in a directory bucket, you must have the
s3express:CreateSession
permission in theAction
element of a policy to read the object. By default, the session is in theReadWrite
mode. If you want to restrict the access, you can explicitly set thes3express:SessionMode
condition key toReadOnly
on the copy source bucket. -
If the copy destination is a directory bucket, you must have the
s3express:CreateSession
permission in theAction
element of a policy to write the object to the destination. Thes3express:SessionMode
condition key cannot be set toReadOnly
on the copy destination.
If the object is encrypted with SSE-KMS, you must also have the
kms:GenerateDataKey
andkms:Decrypt
permissions in IAM identity-based policies and Amazon KMS key policies for the Amazon KMS key.For example policies, see Example bucket policies for S3 Express One Zone and Amazon Identity and Access Management (IAM) identity-based policies for S3 Express One Zone in the Amazon S3 User Guide.
-
-
- Encryption
-
-
General purpose buckets - For information about using server-side encryption with customer-provided encryption keys with the
UploadPartCopy
operation, see CopyObject and UploadPart. -
Directory buckets - For directory buckets, there are only two supported options for server-side encryption: server-side encryption with Amazon S3 managed keys (SSE-S3) (
AES256
) and server-side encryption with Amazon KMS keys (SSE-KMS) (aws:kms
). For more information, see Protecting data with server-side encryption in the Amazon S3 User Guide.Note
For directory buckets, when you perform a
CreateMultipartUpload
operation and anUploadPartCopy
operation, the request headers you provide in theCreateMultipartUpload
request must match the default encryption configuration of the destination bucket.S3 Bucket Keys aren't supported, when you copy SSE-KMS encrypted objects from general purpose buckets to directory buckets, from directory buckets to general purpose buckets, or between directory buckets, through UploadPartCopy. In this case, Amazon S3 makes a call to Amazon KMS every time a copy request is made for a KMS-encrypted object.
-
- Special errors
-
-
Error Code:
NoSuchUpload
-
Description: The specified multipart upload does not exist. The upload ID might be invalid, or the multipart upload might have been aborted or completed.
-
HTTP Status Code: 404 Not Found
-
-
Error Code:
InvalidRequest
-
Description: The specified copy source is not supported as a byte-range copy source.
-
HTTP Status Code: 400 Bad Request
-
-
- 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 UploadPartCopy
:
Request Syntax
PUT /Key+
?partNumber=PartNumber
&uploadId=UploadId
HTTP/1.1
Host: Bucket
.s3.amazonaws.com
x-amz-copy-source: CopySource
x-amz-copy-source-if-match: CopySourceIfMatch
x-amz-copy-source-if-modified-since: CopySourceIfModifiedSince
x-amz-copy-source-if-none-match: CopySourceIfNoneMatch
x-amz-copy-source-if-unmodified-since: CopySourceIfUnmodifiedSince
x-amz-copy-source-range: CopySourceRange
x-amz-server-side-encryption-customer-algorithm: SSECustomerAlgorithm
x-amz-server-side-encryption-customer-key: SSECustomerKey
x-amz-server-side-encryption-customer-key-MD5: SSECustomerKeyMD5
x-amz-copy-source-server-side-encryption-customer-algorithm: CopySourceSSECustomerAlgorithm
x-amz-copy-source-server-side-encryption-customer-key: CopySourceSSECustomerKey
x-amz-copy-source-server-side-encryption-customer-key-MD5: CopySourceSSECustomerKeyMD5
x-amz-request-payer: RequestPayer
x-amz-expected-bucket-owner: ExpectedBucketOwner
x-amz-source-expected-bucket-owner: ExpectedSourceBucketOwner
URI Request Parameters
The request uses the following URI parameters.
- Bucket
-
The bucket name.
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 formatbucket-base-name--zone-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.Note
Copying objects across different Amazon Regions isn't supported when the source or destination bucket is in Amazon Local Zones. The source and destination buckets must have the same parent Amazon Region. Otherwise, you get an HTTP
400 Bad Request
error with the error codeInvalidRequest
.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 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.
Note
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 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.Required: Yes
- Key
-
Object key for which the multipart upload was initiated.
Length Constraints: Minimum length of 1.
Required: Yes
- partNumber
-
Part number of part being copied. This is a positive integer between 1 and 10,000.
Required: Yes
- uploadId
-
Upload ID identifying the multipart upload whose part is being copied.
Required: Yes
- x-amz-copy-source
-
Specifies the source object for the copy operation. You specify the value in one of two formats, depending on whether you want to access the source object through an access point:
-
For objects not accessed through an access point, specify the name of the source bucket and key of the source object, separated by a slash (/). For example, to copy the object
reports/january.pdf
from the bucketawsexamplebucket
, useawsexamplebucket/reports/january.pdf
. The value must be URL-encoded. -
For objects accessed through access points, specify the Amazon Resource Name (ARN) of the object as accessed through the access point, in the format
arn:aws:s3:<Region>:<account-id>:accesspoint/<access-point-name>/object/<key>
. For example, to copy the objectreports/january.pdf
through access pointmy-access-point
owned by account123456789012
in Regionus-west-2
, use the URL encoding ofarn:aws:s3:us-west-2:123456789012:accesspoint/my-access-point/object/reports/january.pdf
. The value must be URL encoded.Note
-
Amazon S3 supports copy operations using Access points only when the source and destination buckets are in the same Amazon Region.
-
Access points are not supported by directory buckets.
Alternatively, for objects accessed through Amazon S3 on Outposts, specify the ARN of the object as accessed in the format
arn:aws:s3-outposts:<Region>:<account-id>:outpost/<outpost-id>/object/<key>
. For example, to copy the objectreports/january.pdf
through outpostmy-outpost
owned by account123456789012
in Regionus-west-2
, use the URL encoding ofarn:aws:s3-outposts:us-west-2:123456789012:outpost/my-outpost/object/reports/january.pdf
. The value must be URL-encoded. -
If your bucket has versioning enabled, you could have multiple versions of the same object. By default,
x-amz-copy-source
identifies the current version of the source object to copy. To copy a specific version of the source object to copy, append?versionId=<version-id>
to thex-amz-copy-source
request header (for example,x-amz-copy-source: /awsexamplebucket/reports/january.pdf?versionId=QUpfdndhfd8438MNFDN93jdnJFkdmqnh893
).If the current version is a delete marker and you don't specify a versionId in the
x-amz-copy-source
request header, Amazon S3 returns a404 Not Found
error, because the object does not exist. If you specify versionId in thex-amz-copy-source
and the versionId is a delete marker, Amazon S3 returns an HTTP400 Bad Request
error, because you are not allowed to specify a delete marker as a version for thex-amz-copy-source
.Note
Directory buckets - S3 Versioning isn't enabled and supported for directory buckets.
Pattern:
\/.+\/.+
Required: Yes
-
- x-amz-copy-source-if-match
-
Copies the object if its entity tag (ETag) matches the specified tag.
If both of the
x-amz-copy-source-if-match
andx-amz-copy-source-if-unmodified-since
headers are present in the request as follows:x-amz-copy-source-if-match
condition evaluates totrue
, and;x-amz-copy-source-if-unmodified-since
condition evaluates tofalse
;Amazon S3 returns
200 OK
and copies the data. - x-amz-copy-source-if-modified-since
-
Copies the object if it has been modified since the specified time.
If both of the
x-amz-copy-source-if-none-match
andx-amz-copy-source-if-modified-since
headers are present in the request as follows:x-amz-copy-source-if-none-match
condition evaluates tofalse
, and;x-amz-copy-source-if-modified-since
condition evaluates totrue
;Amazon S3 returns
412 Precondition Failed
response code. - x-amz-copy-source-if-none-match
-
Copies the object if its entity tag (ETag) is different than the specified ETag.
If both of the
x-amz-copy-source-if-none-match
andx-amz-copy-source-if-modified-since
headers are present in the request as follows:x-amz-copy-source-if-none-match
condition evaluates tofalse
, and;x-amz-copy-source-if-modified-since
condition evaluates totrue
;Amazon S3 returns
412 Precondition Failed
response code. - x-amz-copy-source-if-unmodified-since
-
Copies the object if it hasn't been modified since the specified time.
If both of the
x-amz-copy-source-if-match
andx-amz-copy-source-if-unmodified-since
headers are present in the request as follows:x-amz-copy-source-if-match
condition evaluates totrue
, and;x-amz-copy-source-if-unmodified-since
condition evaluates tofalse
;Amazon S3 returns
200 OK
and copies the data. - x-amz-copy-source-range
-
The range of bytes to copy from the source object. The range value must use the form bytes=first-last, where the first and last are the zero-based byte offsets to copy. For example, bytes=0-9 indicates that you want to copy the first 10 bytes of the source. You can copy a range only if the source object is greater than 5 MB.
- x-amz-copy-source-server-side-encryption-customer-algorithm
-
Specifies the algorithm to use when decrypting the source object (for example,
AES256
).Note
This functionality is not supported when the source object is in a directory bucket.
- x-amz-copy-source-server-side-encryption-customer-key
-
Specifies the customer-provided encryption key for Amazon S3 to use to decrypt the source object. The encryption key provided in this header must be one that was used when the source object was created.
Note
This functionality is not supported when the source object is in a directory bucket.
- x-amz-copy-source-server-side-encryption-customer-key-MD5
-
Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321. Amazon S3 uses this header for a message integrity check to ensure that the encryption key was transmitted without error.
Note
This functionality is not supported when the source object is in a directory bucket.
- x-amz-expected-bucket-owner
-
The account ID of the expected destination bucket owner. If the account ID that you provide does not match the actual owner of the destination bucket, the request fails with the HTTP status code
403 Forbidden
(access denied). - x-amz-request-payer
-
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.
Note
This functionality is not supported for directory buckets.
Valid Values:
requester
- x-amz-server-side-encryption-customer-algorithm
-
Specifies the algorithm to use when encrypting the object (for example, AES256).
Note
This functionality is not supported when the destination bucket is a directory bucket.
- x-amz-server-side-encryption-customer-key
-
Specifies the customer-provided encryption key for Amazon S3 to use in encrypting data. This value is used to store the object and then it is discarded; Amazon S3 does not store the encryption key. The key must be appropriate for use with the algorithm specified in the
x-amz-server-side-encryption-customer-algorithm
header. This must be the same encryption key specified in the initiate multipart upload request.Note
This functionality is not supported when the destination bucket is a directory bucket.
- x-amz-server-side-encryption-customer-key-MD5
-
Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321. Amazon S3 uses this header for a message integrity check to ensure that the encryption key was transmitted without error.
Note
This functionality is not supported when the destination bucket is a directory bucket.
- x-amz-source-expected-bucket-owner
-
The account ID of the expected source bucket owner. If the account ID that you provide does not match the actual owner of the source bucket, the request fails with the HTTP status code
403 Forbidden
(access denied).
Request Body
The request does not have a request body.
Response Syntax
HTTP/1.1 200
x-amz-copy-source-version-id: CopySourceVersionId
x-amz-server-side-encryption: ServerSideEncryption
x-amz-server-side-encryption-customer-algorithm: SSECustomerAlgorithm
x-amz-server-side-encryption-customer-key-MD5: SSECustomerKeyMD5
x-amz-server-side-encryption-aws-kms-key-id: SSEKMSKeyId
x-amz-server-side-encryption-bucket-key-enabled: BucketKeyEnabled
x-amz-request-charged: RequestCharged
<?xml version="1.0" encoding="UTF-8"?>
<CopyPartResult>
<ETag>string</ETag>
<LastModified>timestamp</LastModified>
<ChecksumCRC32>string</ChecksumCRC32>
<ChecksumCRC32C>string</ChecksumCRC32C>
<ChecksumSHA1>string</ChecksumSHA1>
<ChecksumSHA256>string</ChecksumSHA256>
</CopyPartResult>
Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The response returns the following HTTP headers.
- x-amz-copy-source-version-id
-
The version of the source object that was copied, if you have enabled versioning on the source bucket.
Note
This functionality is not supported when the source object is in a directory bucket.
- x-amz-request-charged
-
If present, indicates that the requester was successfully charged for the request.
Note
This functionality is not supported for directory buckets.
Valid Values:
requester
- x-amz-server-side-encryption
-
The server-side encryption algorithm used when you store this object in Amazon S3 (for example,
AES256
,aws:kms
).Valid Values:
AES256 | aws:kms | aws:kms:dsse
- x-amz-server-side-encryption-aws-kms-key-id
-
If present, indicates the ID of the KMS key that was used for object encryption.
- x-amz-server-side-encryption-bucket-key-enabled
-
Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with Amazon Key Management Service (Amazon KMS) keys (SSE-KMS).
- x-amz-server-side-encryption-customer-algorithm
-
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to confirm the encryption algorithm that's used.
Note
This functionality is not supported for directory buckets.
- x-amz-server-side-encryption-customer-key-MD5
-
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide the round-trip message integrity verification of the customer-provided encryption key.
Note
This functionality is not supported for directory buckets.
The following data is returned in XML format by the service.
- CopyPartResult
-
Root level tag for the CopyPartResult parameters.
Required: Yes
- ChecksumCRC32
-
The base64-encoded, 32-bit CRC-32 checksum of the object. This will only be present if it was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
Type: String
- ChecksumCRC32C
-
The base64-encoded, 32-bit CRC-32C checksum of the object. This will only be present if it was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
Type: String
- ChecksumSHA1
-
The base64-encoded, 160-bit SHA-1 digest of the object. This will only be present if it was uploaded with the object. When you use the API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
Type: String
- ChecksumSHA256
-
The base64-encoded, 256-bit SHA-256 digest of the object. This will only be present if it was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
Type: String
- ETag
-
Entity tag of the object.
Type: String
- LastModified
-
Date and time at which the object was uploaded.
Type: Timestamp
Examples
Sample Request for general purpose buckets
The following PUT request uploads a part (part number 2) in a multipart upload. The request specifies a byte range from an existing object as the source of this upload. The request includes the upload ID that you get in response to your Initiate Multipart Upload request.
PUT /newobject?partNumber=2&uploadId=VCVsb2FkIElEIGZvciBlbZZpbmcncyBteS1tb3ZpZS5tMnRzIHVwbG9hZR HTTP/1.1 Host: target-bucket.s3.<Region>.amazonaws.com Date: Mon, 11 Apr 2011 20:34:56 GMT x-amz-copy-source: /source-bucket/sourceobject x-amz-copy-source-range:bytes=500-6291456 Authorization: authorization string
Sample Response for general purpose buckets
The response includes the ETag value. You need to retain this value to use when you send the Complete Multipart Upload request.
HTTP/1.1 200 OK x-amz-id-2: Vvag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg== x-amz-request-id: 656c76696e6727732072657175657374 Date: Mon, 11 Apr 2011 20:34:56 GMT Server: AmazonS3 <CopyPartResult> <LastModified>2011-04-11T20:34:56.000Z</LastModified> <ETag>"9b2cf535f27731c974343645a3985328"</ETag> </CopyPartResult>
Sample Request for general purpose buckets
The following PUT request uploads a part (part number 2) in a multipart upload. The request does not specify the optional byte range header, but requests the entire source object copy as part 2. The request includes the upload ID that you got in response to your Initiate Multipart Upload request.
PUT /newobject?partNumber=2&uploadId=VCVsb2FkIElEIGZvciBlbZZpbmcncyBteS1tb3ZpZS5tMnRzIHVwbG9hZR HTTP/1.1 Host: target-bucket.s3.<Region>.amazonaws.com Date: Mon, 11 Apr 2011 20:34:56 GMT x-amz-copy-source: /source-bucket/sourceobject?versionId=3/L4kqtJlcpXroDTDmJ+rmSpXd3dIbrHY+MTRCxf3vjVBH40Nr8X8gdRQBpUMLUo Authorization: authorization string
Sample Response for general purpose buckets
The response includes the ETag value. You need to retain this value to use when you send the Complete Multipart Upload request.
HTTP/1.1 200 OK x-amz-id-2: Vvag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg== x-amz-request-id: 656c76696e6727732072657175657374 x-amz-copy-source-version-id: 3/L4kqtJlcpXroDTDmJ+rmSpXd3dIbrHY+MTRCxf3vjVBH40Nr8X8gdRQBpUMLUo Date: Mon, 11 Apr 2011 20:34:56 GMT Server: AmazonS3 <CopyPartResult> <LastModified>2011-04-11T20:34:56.000Z</LastModified> <ETag>"9b2cf535f27731c974343645a3985328"</ETag> </CopyPartResult>
See Also
For more information about using this API in one of the language-specific Amazon SDKs, see the following: