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Creates a copy of an object that is already stored in Amazon S3.
You can store individual objects of up to 5 TB in Amazon S3. You create a copy of
your object up to 5 GB in size in a single atomic action using this API. However,
to copy an object greater than 5 GB, you must use the multipart upload Upload Part
- Copy (UploadPartCopy) API. For more information, see Copy
Object Using the REST Multipart Upload API.
You can copy individual objects between general purpose buckets, between directory buckets, and between general purpose buckets and directory buckets.
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.
Both the Region that you want to copy the object from and the Region that you want to copy the object to must be enabled for your account. For more information about how to enable a Region for your account, see Enable or disable a Region for standalone accounts in the Amazon Web Services Account Management Guide.
Amazon S3 transfer acceleration does not support cross-Region copies. If you request
a cross-Region copy using a transfer acceleration endpoint, you get a 400 Bad Request
error. For more information, see Transfer
Acceleration.
All CopyObject requests must be authenticated and signed by using IAM credentials
(access key ID and secret access key for the IAM identities). All headers with the
x-amz- prefix, including x-amz-copy-source, must be signed. For more
information, see REST
Authentication.
Directory buckets - You must use the IAM credentials to authenticate and authorize
your access to the CopyObject API operation, instead of using the temporary
security credentials through the CreateSession API operation.
Amazon Web Services CLI or SDKs handles authentication and authorization on your behalf.
You must have read access to the source object and write access to the destination bucket.
General purpose bucket permissions - You must have permissions in an IAM policy
based on the source and destination bucket types in a CopyObject operation.
If the source object is in a general purpose bucket, you must have s3:GetObject permission to read the source object that is being copied.
If the destination bucket is a general purpose bucket, you must have s3:PutObject permission to write the object copy to the destination bucket.
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
a CopyObject operation.
If the source object that you want to copy is in a directory bucket, you must have
the s3express:CreateSession permission in the Action element
of a policy to read the object. By default, the session is in the ReadWrite
mode. If you want to restrict the access, you can explicitly set the s3express:SessionMode
condition key to ReadOnly on the copy source bucket.
If the copy destination is a directory bucket, you must have the s3express:CreateSession permission in the Action element of a policy to write the object to the
destination. The s3express:SessionMode condition key can't be set to ReadOnly
on the copy destination bucket.
For example policies, see Example bucket policies for S3 Express One Zone and Amazon Web Services Identity and Access Management (IAM) identity-based policies for S3 Express One Zone in the Amazon S3 User Guide.
When the request is an HTTP 1.1 request, the response is chunk encoded. When the request
is not an HTTP 1.1 request, the response would not contain the Content-Length.
You always need to read the entire response body to check if the copy succeeds. to
keep the connection alive while we copy the data.
If the copy is successful, you receive a response with information about the copied object.
A copy request might return an error when Amazon S3 receives the copy request or while
Amazon S3 is copying the files. A 200 OK response can contain either a success
or an error.
If the error occurs before the copy action starts, you receive a standard Amazon S3 error.
If the error occurs during the copy operation, the error response is embedded in the
200 OK response. For example, in a cross-region copy, you may encounter throttling
and receive a 200 OK response. For more information, see Resolve
the Error 200 response when copying objects to Amazon S3. The 200 OK status
code means the copy was accepted, but it doesn't mean the copy is complete. Another
example is when you disconnect from Amazon S3 before the copy is complete, Amazon
S3 might cancel the copy and you may receive a 200 OK response. You must stay
connected to Amazon S3 until the entire response is successfully received and processed.
If you call this API operation directly, make sure to design your application to parse the content of the response and handle it appropriately. If you use Amazon Web Services SDKs, SDKs handle this condition. The SDKs detect the embedded error and apply error handling per your configuration settings (including automatically retrying the request as appropriate). If the condition persists, the SDKs throw an exception (or, for the SDKs that don't use exceptions, they return an error).
The copy request charge is based on the storage class and Region that you specify for the destination object. The request can also result in a data retrieval charge for the source if the source storage class bills for data retrieval. If the copy source is in a different region, the data transfer is billed to the copy source account. For pricing information, see Amazon S3 pricing.
Directory buckets - The HTTP Host header syntax is Bucket_name.s3express-az_id.region.amazonaws.com.
The following operations are related to CopyObject:
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginCopyObject and EndCopyObject.
Namespace: Amazon.S3
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z
public virtual Task<CopyObjectResponse> CopyObjectAsync( String sourceBucket, String sourceKey, String destinationBucket, String destinationKey, CancellationToken cancellationToken )
A property of CopyObjectRequest used to execute the CopyObject service method.
A property of CopyObjectRequest used to execute the CopyObject service method.
The name of the destination bucket. 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.
A property of CopyObjectRequest used to execute the CopyObject service method.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5