2020/12/01 - Amazon Simple Storage Service - 12 updated api methods
Changes S3 adds support for multiple-destination replication, option to sync replica modifications; S3 Bucket Keys to reduce cost of S3 SSE with AWS KMS
{'BucketKeyEnabled': 'boolean'}
Completes a multipart upload by assembling previously uploaded parts.
You first initiate the multipart upload and then upload all parts using the UploadPart operation. After successfully uploading all relevant parts of an upload, you call this operation to complete the upload. Upon receiving this request, Amazon S3 concatenates all the parts in ascending order by part number to create a new object. In the Complete Multipart Upload request, you must provide the parts list. You must ensure that the parts list is complete. This operation concatenates the parts that you provide in the list. For each part in the list, you must provide the part number and the ETag value, returned after that part was uploaded.
Processing of a Complete Multipart Upload request could take several minutes to complete. After Amazon S3 begins processing the request, it sends an HTTP response header that specifies a 200 OK response. While processing is in progress, Amazon S3 periodically sends white space characters to keep the connection from timing out. Because a request could fail after the initial 200 OK response has been sent, it is important that you check the response body to determine whether the request succeeded.
Note that if CompleteMultipartUpload fails, applications should be prepared to retry the failed requests. For more information, see Amazon S3 Error Best Practices .
For more information about multipart uploads, see Uploading Objects Using Multipart Upload .
For information about permissions required to use the multipart upload API, see Multipart Upload API and Permissions .
CompleteMultipartUpload has the following special errors:
Error code: EntityTooSmall
Description: Your proposed upload is smaller than the minimum allowed object size. Each part must be at least 5 MB in size, except the last part.
400 Bad Request
Error code: InvalidPart
Description: One or more of the specified parts could not be found. The part might not have been uploaded, or the specified entity tag might not have matched the part's entity tag.
400 Bad Request
Error code: InvalidPartOrder
Description: The list of parts was not in ascending order. The parts list must be specified in order by part number.
400 Bad Request
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.
404 Not Found
The following operations are related to CompleteMultipartUpload :
See also: AWS API Documentation
Request Syntax
client.complete_multipart_upload(
Bucket='string',
Key='string',
MultipartUpload={
'Parts': [
{
'ETag': 'string',
'PartNumber': 123
},
]
},
UploadId='string',
RequestPayer='requester',
ExpectedBucketOwner='string'
)
string
[REQUIRED]
Name of the bucket to which the multipart upload was initiated.
string
[REQUIRED]
Object key for which the multipart upload was initiated.
dict
The container for the multipart upload request information.
Parts (list) --
Array of CompletedPart data types.
(dict) --
Details of the parts that were uploaded.
ETag (string) --
Entity tag returned when the part was uploaded.
PartNumber (integer) --
Part number that identifies the part. This is a positive integer between 1 and 10,000.
string
[REQUIRED]
ID for the initiated multipart upload.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'Location': 'string',
'Bucket': 'string',
'Key': 'string',
'Expiration': 'string',
'ETag': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'VersionId': 'string',
'SSEKMSKeyId': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
Location (string) --
The URI that identifies the newly created object.
Bucket (string) --
The name of the bucket that contains the newly created object.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
Key (string) --
The object key of the newly created object.
Expiration (string) --
If the object expiration is configured, this will contain the expiration date (expiry-date) and rule ID (rule-id). The value of rule-id is URL encoded.
ETag (string) --
Entity tag that identifies the newly created object's data. Objects with different object data will have different entity tags. The entity tag is an opaque string. The entity tag may or may not be an MD5 digest of the object data. If the entity tag is not an MD5 digest of the object data, it will contain one or more nonhexadecimal characters and/or will consist of less than 32 or more than 32 hexadecimal digits.
ServerSideEncryption (string) --
If you specified server-side encryption either with an Amazon S3-managed encryption key or an AWS KMS customer master key (CMK) in your initiate multipart upload request, the response includes this header. It confirms the encryption algorithm that Amazon S3 used to encrypt the object.
VersionId (string) --
Version ID of the newly created object, in case the bucket has versioning turned on.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
BucketKeyEnabled (boolean) --
Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
{'BucketKeyEnabled': 'boolean'}
Creates a copy of an object that is already stored in Amazon S3.
Note
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 operation using this API. However, to copy an object greater than 5 GB, you must use the multipart upload Upload Part - Copy API. For more information, see Copy Object Using the REST Multipart Upload API .
All copy requests must be authenticated. Additionally, you must have read access to the source object and write access to the destination bucket. For more information, see REST Authentication . 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.
A copy request might return an error when Amazon S3 receives the copy request or while Amazon S3 is copying the files. If the error occurs before the copy operation 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. This means that a 200 OK response can contain either a success or an error. Design your application to parse the contents of the response and handle it appropriately.
If the copy is successful, you receive a response with information about the copied object.
Note
If the request is an HTTP 1.1 request, the response is chunk encoded. If it were not, it would not contain the content-length, and you would need to read the entire body.
The copy request charge is based on the storage class and Region that you specify for the destination object. For pricing information, see Amazon S3 pricing .
Warning
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 .
Metadata
When copying an object, you can preserve all metadata (default) or specify new metadata. However, the ACL is not preserved and is set to private for the user making the request. To override the default ACL setting, specify a new ACL when generating a copy request. For more information, see Using ACLs .
To specify whether you want the object metadata copied from the source object or replaced with metadata provided in the request, you can optionally add the x-amz-metadata-directive header. When you grant permissions, you can use the s3:x-amz-metadata-directive condition key to enforce certain metadata behavior when objects are uploaded. For more information, see Specifying Conditions in a Policy in the Amazon S3 Developer Guide . For a complete list of Amazon S3-specific condition keys, see Actions, Resources, and Condition Keys for Amazon S3 .
** x-amz-copy-source-if Headers**
To only copy an object under certain conditions, such as whether the Etag matches or whether the object was modified before or after a specified date, use the following request parameters:
x-amz-copy-source-if-match
x-amz-copy-source-if-none-match
x-amz-copy-source-if-unmodified-since
x-amz-copy-source-if-modified-since
If both the x-amz-copy-source-if-match and x-amz-copy-source-if-unmodified-since headers are present in the request and evaluate as follows, Amazon S3 returns 200 OK and copies the data:
x-amz-copy-source-if-match condition evaluates to true
x-amz-copy-source-if-unmodified-since condition evaluates to false
If both the x-amz-copy-source-if-none-match and x-amz-copy-source-if-modified-since headers are present in the request and evaluate as follows, Amazon S3 returns the 412 Precondition Failed response code:
x-amz-copy-source-if-none-match condition evaluates to false
x-amz-copy-source-if-modified-since condition evaluates to true
Note
All headers with the x-amz- prefix, including x-amz-copy-source , must be signed.
Server-side encryption
When you perform a CopyObject operation, you can optionally use the appropriate encryption-related headers to encrypt the object using server-side encryption with AWS managed encryption keys (SSE-S3 or SSE-KMS) or a customer-provided encryption key. With server-side encryption, Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts the data when you access it. For more information about server-side encryption, see Using Server-Side Encryption .
If a target object uses SSE-KMS, you can enable an S3 Bucket Key for the object. For more information, see Amazon S3 Bucket Keys in the Amazon Simple Storage Service Developer Guide .
Access Control List (ACL)-Specific Request Headers
When copying an object, you can optionally use headers to grant ACL-based permissions. By default, all objects are private. Only the owner has full access control. When adding a new object, you can grant permissions to individual AWS accounts or to predefined groups defined by Amazon S3. These permissions are then added to the ACL on the object. For more information, see Access Control List (ACL) Overview and Managing ACLs Using the REST API .
Storage Class Options
You can use the CopyObject operation to change the storage class of an object that is already stored in Amazon S3 using the StorageClass parameter. For more information, see Storage Classes in the Amazon S3 Service Developer Guide .
Versioning
By default, x-amz-copy-source identifies the current version of an object to copy. If the current version is a delete marker, Amazon S3 behaves as if the object was deleted. To copy a different version, use the versionId subresource.
If you enable versioning on the target bucket, Amazon S3 generates a unique version ID for the object being copied. This version ID is different from the version ID of the source object. Amazon S3 returns the version ID of the copied object in the x-amz-version-id response header in the response.
If you do not enable versioning or suspend it on the target bucket, the version ID that Amazon S3 generates is always null.
If the source object's storage class is GLACIER, you must restore a copy of this object before you can use it as a source object for the copy operation. For more information, see RestoreObject .
The following operations are related to CopyObject :
For more information, see Copying Objects .
See also: AWS API Documentation
Request Syntax
client.copy_object(
ACL='private'|'public-read'|'public-read-write'|'authenticated-read'|'aws-exec-read'|'bucket-owner-read'|'bucket-owner-full-control',
Bucket='string',
CacheControl='string',
ContentDisposition='string',
ContentEncoding='string',
ContentLanguage='string',
ContentType='string',
CopySource='string',
CopySourceIfMatch='string',
CopySourceIfModifiedSince=datetime(2015, 1, 1),
CopySourceIfNoneMatch='string',
CopySourceIfUnmodifiedSince=datetime(2015, 1, 1),
Expires=datetime(2015, 1, 1),
GrantFullControl='string',
GrantRead='string',
GrantReadACP='string',
GrantWriteACP='string',
Key='string',
Metadata={
'string': 'string'
},
MetadataDirective='COPY'|'REPLACE',
TaggingDirective='COPY'|'REPLACE',
ServerSideEncryption='AES256'|'aws:kms',
StorageClass='STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
WebsiteRedirectLocation='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
SSEKMSKeyId='string',
SSEKMSEncryptionContext='string',
BucketKeyEnabled=True|False,
CopySourceSSECustomerAlgorithm='string',
CopySourceSSECustomerKey=b'bytes',
CopySourceSSECustomerKeyMD5='string',
RequestPayer='requester',
Tagging='string',
ObjectLockMode='GOVERNANCE'|'COMPLIANCE',
ObjectLockRetainUntilDate=datetime(2015, 1, 1),
ObjectLockLegalHoldStatus='ON'|'OFF',
ExpectedBucketOwner='string',
ExpectedSourceBucketOwner='string'
)
string
The canned ACL to apply to the object.
This action is not supported by Amazon S3 on Outposts.
string
[REQUIRED]
The name of the destination bucket.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
string
Specifies caching behavior along the request/reply chain.
string
Specifies presentational information for the object.
string
Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field.
string
The language the content is in.
string
A standard MIME type describing the format of the object data.
string
[REQUIRED]
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 the key of the source object, separated by a slash (/). For example, to copy the object reports/january.pdf from the bucket awsexamplebucket , use awsexamplebucket/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 object reports/january.pdf through access point my-access-point owned by account 123456789012 in Region us-west-2 , use the URL encoding of arn: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 AWS Region.
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 object reports/january.pdf through outpost my-outpost owned by account 123456789012 in Region us-west-2 , use the URL encoding of arn:aws:s3-outposts:us-west-2:123456789012:outpost/my-outpost/object/reports/january.pdf . The value must be URL encoded.
To copy a specific version of an object, append ?versionId=<version-id> to the value (for example, awsexamplebucket/reports/january.pdf?versionId=QUpfdndhfd8438MNFDN93jdnJFkdmqnh893 ). If you don't specify a version ID, Amazon S3 copies the latest version of the source object.
string
Copies the object if its entity tag (ETag) matches the specified tag.
datetime
Copies the object if it has been modified since the specified time.
string
Copies the object if its entity tag (ETag) is different than the specified ETag.
datetime
Copies the object if it hasn't been modified since the specified time.
datetime
The date and time at which the object is no longer cacheable.
string
Gives the grantee READ, READ_ACP, and WRITE_ACP permissions on the object.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to read the object data and its metadata.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to read the object ACL.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to write the ACL for the applicable object.
This action is not supported by Amazon S3 on Outposts.
string
[REQUIRED]
The key of the destination object.
dict
A map of metadata to store with the object in S3.
(string) --
(string) --
string
Specifies whether the metadata is copied from the source object or replaced with metadata provided in the request.
string
Specifies whether the object tag-set are copied from the source object or replaced with tag-set provided in the request.
string
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
string
By default, Amazon S3 uses the STANDARD Storage Class to store newly created objects. The STANDARD storage class provides high durability and high availability. Depending on performance needs, you can specify a different Storage Class. Amazon S3 on Outposts only uses the OUTPOSTS Storage Class. For more information, see Storage Classes in the Amazon S3 Service Developer Guide .
string
If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL. Amazon S3 stores the value of this header in the object metadata.
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
Specifies the AWS KMS key ID to use for object encryption. All GET and PUT requests for an object protected by AWS KMS will fail if not made via SSL or using SigV4. For information about configuring using any of the officially supported AWS SDKs and AWS CLI, see Specifying the Signature Version in Request Authentication in the Amazon S3 Developer Guide .
string
Specifies the AWS KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
boolean
Specifies whether Amazon S3 should use an S3 Bucket Key for object encryption with server-side encryption using AWS KMS (SSE-KMS). Setting this header to true causes Amazon S3 to use an S3 Bucket Key for object encryption with SSE-KMS.
Specifying this header with a COPY operation doesn’t affect bucket-level settings for S3 Bucket Key.
string
Specifies the algorithm to use when decrypting the source object (for example, AES256).
bytes
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.
string
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.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
string
The tag-set for the object destination object this value must be used in conjunction with the TaggingDirective . The tag-set must be encoded as URL Query parameters.
string
The Object Lock mode that you want to apply to the copied object.
datetime
The date and time when you want the copied object's Object Lock to expire.
string
Specifies whether you want to apply a Legal Hold to the copied object.
string
The account id of the expected destination bucket owner. If the destination bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
string
The account id of the expected source bucket owner. If the source bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'CopyObjectResult': {
'ETag': 'string',
'LastModified': datetime(2015, 1, 1)
},
'Expiration': 'string',
'CopySourceVersionId': 'string',
'VersionId': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'SSEKMSEncryptionContext': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
CopyObjectResult (dict) --
Container for all response elements.
ETag (string) --
Returns the ETag of the new object. The ETag reflects only changes to the contents of an object, not its metadata. The source and destination ETag is identical for a successfully copied object.
LastModified (datetime) --
Returns the date that the object was last modified.
Expiration (string) --
If the object expiration is configured, the response includes this header.
CopySourceVersionId (string) --
Version of the copied object in the destination bucket.
VersionId (string) --
Version ID of the newly created copy.
ServerSideEncryption (string) --
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
SSEKMSEncryptionContext (string) --
If present, specifies the AWS KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
BucketKeyEnabled (boolean) --
Indicates whether the copied object uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
{'BucketKeyEnabled': 'boolean'}
This operation initiates a multipart upload and returns an upload ID. This upload ID is used to associate all of the parts in the specific multipart upload. You specify this upload ID in each of your subsequent upload part requests (see UploadPart ). You also include this upload ID in the final request to either complete or abort the multipart upload request.
For more information about multipart uploads, see Multipart Upload Overview .
If you have configured a lifecycle rule to abort incomplete multipart uploads, the upload must complete within the number of days specified in the bucket lifecycle configuration. Otherwise, the incomplete multipart upload becomes eligible for an abort operation and Amazon S3 aborts the multipart upload. For more information, see Aborting Incomplete Multipart Uploads Using a Bucket Lifecycle Policy .
For information about the permissions required to use the multipart upload API, see Multipart Upload API and Permissions .
For request signing, multipart upload is just a series of regular requests. You initiate a multipart upload, send one or more requests to upload parts, and then complete the multipart upload process. You sign each request individually. There is nothing special about signing multipart upload requests. For more information about signing, see Authenticating Requests (AWS Signature Version 4) .
Note
After you initiate a multipart upload and upload one or more parts, to stop being charged for storing the uploaded parts, you must either complete or abort the multipart upload. Amazon S3 frees up the space used to store the parts and stop charging you for storing them only after you either complete or abort a multipart upload.
You can optionally request server-side encryption. For server-side encryption, Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts it when you access it. You can provide your own encryption key, or use AWS Key Management Service (AWS KMS) customer master keys (CMKs) or Amazon S3-managed encryption keys. If you choose to provide your own encryption key, the request headers you provide in UploadPart and UploadPartCopy requests must match the headers you used in the request to initiate the upload by using CreateMultipartUpload .
To perform a multipart upload with encryption using an AWS KMS CMK, the requester must have permission to the kms:Encrypt , kms:Decrypt , kms:ReEncrypt* , kms:GenerateDataKey* , and kms:DescribeKey actions on the key. These permissions are required because Amazon S3 must decrypt and read data from the encrypted file parts before it completes the multipart upload.
If your AWS Identity and Access Management (IAM) user or role is in the same AWS account as the AWS KMS CMK, then you must have these permissions on the key policy. If your IAM user or role belongs to a different account than the key, then you must have the permissions on both the key policy and your IAM user or role.
For more information, see Protecting Data Using Server-Side Encryption .
Access Permissions
When copying an object, you can optionally specify the accounts or groups that should be granted specific permissions on the new object. There are two ways to grant the permissions using the request headers:
Specify a canned ACL with the x-amz-acl request header. For more information, see Canned ACL .
Specify access permissions explicitly with the x-amz-grant-read , x-amz-grant-read-acp , x-amz-grant-write-acp , and x-amz-grant-full-control headers. These parameters map to the set of permissions that Amazon S3 supports in an ACL. For more information, see Access Control List (ACL) Overview .
You can use either a canned ACL or specify access permissions explicitly. You cannot do both.
Server-Side- Encryption-Specific Request Headers
You can optionally tell Amazon S3 to encrypt data at rest using server-side encryption. Server-side encryption is for data encryption at rest. Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts it when you access it. The option you use depends on whether you want to use AWS managed encryption keys or provide your own encryption key.
Use encryption keys managed by Amazon S3 or customer master keys (CMKs) stored in AWS Key Management Service (AWS KMS) – If you want AWS to manage the keys used to encrypt data, specify the following headers in the request.
x-amz-server-side-encryption
x-amz-server-side-encryption-aws-kms-key-id
x-amz-server-side-encryption-context
Note
If you specify x-amz-server-side-encryption:aws:kms , but don't provide x-amz-server-side-encryption-aws-kms-key-id , Amazon S3 uses the AWS managed CMK in AWS KMS to protect the data.
Warning
All GET and PUT requests for an object protected by AWS KMS fail if you don't make them with SSL or by using SigV4.
For more information about server-side encryption with CMKs stored in AWS KMS (SSE-KMS), see Protecting Data Using Server-Side Encryption with CMKs stored in AWS KMS .
Use customer-provided encryption keys – If you want to manage your own encryption keys, provide all the following headers in the request.
x-amz-server-side-encryption-customer-algorithm
x-amz-server-side-encryption-customer-key
x-amz-server-side-encryption-customer-key-MD5
For more information about server-side encryption with CMKs stored in AWS KMS (SSE-KMS), see Protecting Data Using Server-Side Encryption with CMKs stored in AWS KMS .
Access-Control-List (ACL)-Specific Request Headers
You also can use the following access control–related headers with this operation. By default, all objects are private. Only the owner has full access control. When adding a new object, you can grant permissions to individual AWS accounts or to predefined groups defined by Amazon S3. These permissions are then added to the access control list (ACL) on the object. For more information, see Using ACLs . With this operation, you can grant access permissions using one of the following two methods:
Specify a canned ACL (x-amz-acl ) — Amazon S3 supports a set of predefined ACLs, known as canned ACLs . Each canned ACL has a predefined set of grantees and permissions. For more information, see Canned ACL .
Specify access permissions explicitly — To explicitly grant access permissions to specific AWS accounts or groups, use the following headers. Each header maps to specific permissions that Amazon S3 supports in an ACL. For more information, see Access Control List (ACL) Overview . In the header, you specify a list of grantees who get the specific permission. To grant permissions explicitly, use:
x-amz-grant-read
x-amz-grant-write
x-amz-grant-read-acp
x-amz-grant-write-acp
x-amz-grant-full-control
You specify each grantee as a type=value pair, where the type is one of the following:
id – if the value specified is the canonical user ID of an AWS account
uri – if you are granting permissions to a predefined group
emailAddress – if the value specified is the email address of an AWS account
Note
Using email addresses to specify a grantee is only supported in the following AWS Regions:
US East (N. Virginia)
US West (N. California)
US West (Oregon)
Asia Pacific (Singapore)
Asia Pacific (Sydney)
Asia Pacific (Tokyo)
Europe (Ireland)
South America (São Paulo)
For a list of all the Amazon S3 supported Regions and endpoints, see Regions and Endpoints in the AWS General Reference.
For example, the following x-amz-grant-read header grants the AWS accounts identified by account IDs permissions to read object data and its metadata:
x-amz-grant-read: id="11112222333", id="444455556666"
The following operations are related to CreateMultipartUpload :
See also: AWS API Documentation
Request Syntax
client.create_multipart_upload(
ACL='private'|'public-read'|'public-read-write'|'authenticated-read'|'aws-exec-read'|'bucket-owner-read'|'bucket-owner-full-control',
Bucket='string',
CacheControl='string',
ContentDisposition='string',
ContentEncoding='string',
ContentLanguage='string',
ContentType='string',
Expires=datetime(2015, 1, 1),
GrantFullControl='string',
GrantRead='string',
GrantReadACP='string',
GrantWriteACP='string',
Key='string',
Metadata={
'string': 'string'
},
ServerSideEncryption='AES256'|'aws:kms',
StorageClass='STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
WebsiteRedirectLocation='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
SSEKMSKeyId='string',
SSEKMSEncryptionContext='string',
BucketKeyEnabled=True|False,
RequestPayer='requester',
Tagging='string',
ObjectLockMode='GOVERNANCE'|'COMPLIANCE',
ObjectLockRetainUntilDate=datetime(2015, 1, 1),
ObjectLockLegalHoldStatus='ON'|'OFF',
ExpectedBucketOwner='string'
)
string
The canned ACL to apply to the object.
This action is not supported by Amazon S3 on Outposts.
string
[REQUIRED]
The name of the bucket to which to initiate the upload
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
string
Specifies caching behavior along the request/reply chain.
string
Specifies presentational information for the object.
string
Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field.
string
The language the content is in.
string
A standard MIME type describing the format of the object data.
datetime
The date and time at which the object is no longer cacheable.
string
Gives the grantee READ, READ_ACP, and WRITE_ACP permissions on the object.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to read the object data and its metadata.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to read the object ACL.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to write the ACL for the applicable object.
This action is not supported by Amazon S3 on Outposts.
string
[REQUIRED]
Object key for which the multipart upload is to be initiated.
dict
A map of metadata to store with the object in S3.
(string) --
(string) --
string
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
string
By default, Amazon S3 uses the STANDARD Storage Class to store newly created objects. The STANDARD storage class provides high durability and high availability. Depending on performance needs, you can specify a different Storage Class. Amazon S3 on Outposts only uses the OUTPOSTS Storage Class. For more information, see Storage Classes in the Amazon S3 Service Developer Guide .
string
If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL. Amazon S3 stores the value of this header in the object metadata.
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
Specifies the ID of the symmetric customer managed AWS KMS CMK to use for object encryption. All GET and PUT requests for an object protected by AWS KMS will fail if not made via SSL or using SigV4. For information about configuring using any of the officially supported AWS SDKs and AWS CLI, see Specifying the Signature Version in Request Authentication in the Amazon S3 Developer Guide .
string
Specifies the AWS KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
boolean
Specifies whether Amazon S3 should use an S3 Bucket Key for object encryption with server-side encryption using AWS KMS (SSE-KMS). Setting this header to true causes Amazon S3 to use an S3 Bucket Key for object encryption with SSE-KMS.
Specifying this header with an object operation doesn’t affect bucket-level settings for S3 Bucket Key.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
string
The tag-set for the object. The tag-set must be encoded as URL Query parameters.
string
Specifies the Object Lock mode that you want to apply to the uploaded object.
datetime
Specifies the date and time when you want the Object Lock to expire.
string
Specifies whether you want to apply a Legal Hold to the uploaded object.
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'AbortDate': datetime(2015, 1, 1),
'AbortRuleId': 'string',
'Bucket': 'string',
'Key': 'string',
'UploadId': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'SSEKMSEncryptionContext': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
AbortDate (datetime) --
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, the response includes this header. The header indicates when the initiated multipart upload becomes eligible for an abort operation. For more information, see Aborting Incomplete Multipart Uploads Using a Bucket Lifecycle Policy .
The response also includes the x-amz-abort-rule-id header that provides the ID of the lifecycle configuration rule that defines this action.
AbortRuleId (string) --
This header is returned along with the x-amz-abort-date header. It identifies the applicable lifecycle configuration rule that defines the action to abort incomplete multipart uploads.
Bucket (string) --
The name of the bucket to which the multipart upload was initiated.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
Key (string) --
Object key for which the multipart upload was initiated.
UploadId (string) --
ID for the initiated multipart upload.
ServerSideEncryption (string) --
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
SSEKMSEncryptionContext (string) --
If present, specifies the AWS KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
BucketKeyEnabled (boolean) --
Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
{'ServerSideEncryptionConfiguration': {'Rules': {'BucketKeyEnabled': 'boolean'}}}
Returns the default encryption configuration for an Amazon S3 bucket. For information about the Amazon S3 default encryption feature, see Amazon S3 Default Bucket Encryption .
To use this operation, you must have permission to perform the s3:GetEncryptionConfiguration action. The bucket owner has this permission by default. The bucket owner can grant this permission to others. For more information about permissions, see Permissions Related to Bucket Subresource Operations and Managing Access Permissions to Your Amazon S3 Resources .
The following operations are related to GetBucketEncryption :
See also: AWS API Documentation
Request Syntax
client.get_bucket_encryption(
Bucket='string',
ExpectedBucketOwner='string'
)
string
[REQUIRED]
The name of the bucket from which the server-side encryption configuration is retrieved.
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'ServerSideEncryptionConfiguration': {
'Rules': [
{
'ApplyServerSideEncryptionByDefault': {
'SSEAlgorithm': 'AES256'|'aws:kms',
'KMSMasterKeyID': 'string'
},
'BucketKeyEnabled': True|False
},
]
}
}
Response Structure
(dict) --
ServerSideEncryptionConfiguration (dict) --
Specifies the default server-side-encryption configuration.
Rules (list) --
Container for information about a particular server-side encryption configuration rule.
(dict) --
Specifies the default server-side encryption configuration.
ApplyServerSideEncryptionByDefault (dict) --
Specifies the default server-side encryption to apply to new objects in the bucket. If a PUT Object request doesn't specify any server-side encryption, this default encryption will be applied.
SSEAlgorithm (string) --
Server-side encryption algorithm to use for the default encryption.
KMSMasterKeyID (string) --
AWS Key Management Service (KMS) customer master key ID to use for the default encryption. This parameter is allowed if and only if SSEAlgorithm is set to aws:kms .
You can specify the key ID or the Amazon Resource Name (ARN) of the CMK. However, if you are using encryption with cross-account operations, you must use a fully qualified CMK ARN. For more information, see Using encryption for cross-account operations .
For example:
Key ID: 1234abcd-12ab-34cd-56ef-1234567890ab
Key ARN: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab
Warning
Amazon S3 only supports symmetric CMKs and not asymmetric CMKs. For more information, see Using Symmetric and Asymmetric Keys in the AWS Key Management Service Developer Guide .
BucketKeyEnabled (boolean) --
Specifies whether Amazon S3 should use an S3 Bucket Key with server-side encryption using KMS (SSE-KMS) for new objects in the bucket. Existing objects are not affected. Setting the BucketKeyEnabled element to true causes Amazon S3 to use an S3 Bucket Key. By default, S3 Bucket Key is not enabled.
For more information, see Amazon S3 Bucket Keys in the Amazon Simple Storage Service Developer Guide .
{'ReplicationConfiguration': {'Rules': {'SourceSelectionCriteria': {'ReplicaModifications': {'Status': 'Enabled '
'| '
'Disabled'}}}}}
Returns the replication configuration of a bucket.
Note
It can take a while to propagate the put or delete a replication configuration to all Amazon S3 systems. Therefore, a get request soon after put or delete can return a wrong result.
For information about replication configuration, see Replication in the Amazon Simple Storage Service Developer Guide .
This operation requires permissions for the s3:GetReplicationConfiguration action. For more information about permissions, see Using Bucket Policies and User Policies .
If you include the Filter element in a replication configuration, you must also include the DeleteMarkerReplication and Priority elements. The response also returns those elements.
For information about GetBucketReplication errors, see List of replication-related error codes
The following operations are related to GetBucketReplication :
See also: AWS API Documentation
Request Syntax
client.get_bucket_replication(
Bucket='string',
ExpectedBucketOwner='string'
)
string
[REQUIRED]
The bucket name for which to get the replication information.
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'ReplicationConfiguration': {
'Role': 'string',
'Rules': [
{
'ID': 'string',
'Priority': 123,
'Prefix': 'string',
'Filter': {
'Prefix': 'string',
'Tag': {
'Key': 'string',
'Value': 'string'
},
'And': {
'Prefix': 'string',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
]
}
},
'Status': 'Enabled'|'Disabled',
'SourceSelectionCriteria': {
'SseKmsEncryptedObjects': {
'Status': 'Enabled'|'Disabled'
},
'ReplicaModifications': {
'Status': 'Enabled'|'Disabled'
}
},
'ExistingObjectReplication': {
'Status': 'Enabled'|'Disabled'
},
'Destination': {
'Bucket': 'string',
'Account': 'string',
'StorageClass': 'STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
'AccessControlTranslation': {
'Owner': 'Destination'
},
'EncryptionConfiguration': {
'ReplicaKmsKeyID': 'string'
},
'ReplicationTime': {
'Status': 'Enabled'|'Disabled',
'Time': {
'Minutes': 123
}
},
'Metrics': {
'Status': 'Enabled'|'Disabled',
'EventThreshold': {
'Minutes': 123
}
}
},
'DeleteMarkerReplication': {
'Status': 'Enabled'|'Disabled'
}
},
]
}
}
Response Structure
(dict) --
ReplicationConfiguration (dict) --
A container for replication rules. You can add up to 1,000 rules. The maximum size of a replication configuration is 2 MB.
Role (string) --
The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that Amazon S3 assumes when replicating objects. For more information, see How to Set Up Replication in the Amazon Simple Storage Service Developer Guide .
Rules (list) --
A container for one or more replication rules. A replication configuration must have at least one rule and can contain a maximum of 1,000 rules.
(dict) --
Specifies which Amazon S3 objects to replicate and where to store the replicas.
ID (string) --
A unique identifier for the rule. The maximum value is 255 characters.
Priority (integer) --
The priority indicates which rule has precedence whenever two or more replication rules conflict. Amazon S3 will attempt to replicate objects according to all replication rules. However, if there are two or more rules with the same destination bucket, then objects will be replicated according to the rule with the highest priority. The higher the number, the higher the priority.
For more information, see Replication in the Amazon Simple Storage Service Developer Guide .
Prefix (string) --
An object key name prefix that identifies the object or objects to which the rule applies. The maximum prefix length is 1,024 characters. To include all objects in a bucket, specify an empty string.
Filter (dict) --
A filter that identifies the subset of objects to which the replication rule applies. A Filter must specify exactly one Prefix , Tag , or an And child element.
Prefix (string) --
An object key name prefix that identifies the subset of objects to which the rule applies.
Tag (dict) --
A container for specifying a tag key and value.
The rule applies only to objects that have the tag in their tag set.
Key (string) --
Name of the object key.
Value (string) --
Value of the tag.
And (dict) --
A container for specifying rule filters. The filters determine the subset of objects to which the rule applies. This element is required only if you specify more than one filter. For example:
If you specify both a Prefix and a Tag filter, wrap these filters in an And tag.
If you specify a filter based on multiple tags, wrap the Tag elements in an And tag.
Prefix (string) --
An object key name prefix that identifies the subset of objects to which the rule applies.
Tags (list) --
An array of tags containing key and value pairs.
(dict) --
A container of a key value name pair.
Key (string) --
Name of the object key.
Value (string) --
Value of the tag.
Status (string) --
Specifies whether the rule is enabled.
SourceSelectionCriteria (dict) --
A container that describes additional filters for identifying the source objects that you want to replicate. You can choose to enable or disable the replication of these objects. Currently, Amazon S3 supports only the filter that you can specify for objects created with server-side encryption using a customer master key (CMK) stored in AWS Key Management Service (SSE-KMS).
SseKmsEncryptedObjects (dict) --
A container for filter information for the selection of Amazon S3 objects encrypted with AWS KMS. If you include SourceSelectionCriteria in the replication configuration, this element is required.
Status (string) --
Specifies whether Amazon S3 replicates objects created with server-side encryption using a customer master key (CMK) stored in AWS Key Management Service.
ReplicaModifications (dict) --
A filter that you can specify for selections for modifications on replicas. Amazon S3 doesn't replicate replica modifications by default. In the latest version of replication configuration (when Filter is specified), you can specify this element and set the status to Enabled to replicate modifications on replicas.
Note
If you don't specify the Filter element, Amazon S3 assumes that the replication configuration is the earlier version, V1. In the earlier version, this element is not allowed
Status (string) --
Specifies whether Amazon S3 replicates modifications on replicas.
ExistingObjectReplication (dict) --
Status (string) --
Destination (dict) --
A container for information about the replication destination and its configurations including enabling the S3 Replication Time Control (S3 RTC).
Bucket (string) --
The Amazon Resource Name (ARN) of the bucket where you want Amazon S3 to store the results.
Account (string) --
Destination bucket owner account ID. In a cross-account scenario, if you direct Amazon S3 to change replica ownership to the AWS account that owns the destination bucket by specifying the AccessControlTranslation property, this is the account ID of the destination bucket owner. For more information, see Replication Additional Configuration: Changing the Replica Owner in the Amazon Simple Storage Service Developer Guide .
StorageClass (string) --
The storage class to use when replicating objects, such as S3 Standard or reduced redundancy. By default, Amazon S3 uses the storage class of the source object to create the object replica.
For valid values, see the StorageClass element of the PUT Bucket replication action in the Amazon Simple Storage Service API Reference .
AccessControlTranslation (dict) --
Specify this only in a cross-account scenario (where source and destination bucket owners are not the same), and you want to change replica ownership to the AWS account that owns the destination bucket. If this is not specified in the replication configuration, the replicas are owned by same AWS account that owns the source object.
Owner (string) --
Specifies the replica ownership. For default and valid values, see PUT bucket replication in the Amazon Simple Storage Service API Reference .
EncryptionConfiguration (dict) --
A container that provides information about encryption. If SourceSelectionCriteria is specified, you must specify this element.
ReplicaKmsKeyID (string) --
Specifies the ID (Key ARN or Alias ARN) of the customer managed customer master key (CMK) stored in AWS Key Management Service (KMS) for the destination bucket. Amazon S3 uses this key to encrypt replica objects. Amazon S3 only supports symmetric customer managed CMKs. For more information, see Using Symmetric and Asymmetric Keys in the AWS Key Management Service Developer Guide .
ReplicationTime (dict) --
A container specifying S3 Replication Time Control (S3 RTC), including whether S3 RTC is enabled and the time when all objects and operations on objects must be replicated. Must be specified together with a Metrics block.
Status (string) --
Specifies whether the replication time is enabled.
Time (dict) --
A container specifying the time by which replication should be complete for all objects and operations on objects.
Minutes (integer) --
Contains an integer specifying time in minutes.
Valid values: 15 minutes.
Metrics (dict) --
A container specifying replication metrics-related settings enabling replication metrics and events.
Status (string) --
Specifies whether the replication metrics are enabled.
EventThreshold (dict) --
A container specifying the time threshold for emitting the s3:Replication:OperationMissedThreshold event.
Minutes (integer) --
Contains an integer specifying time in minutes.
Valid values: 15 minutes.
DeleteMarkerReplication (dict) --
Specifies whether Amazon S3 replicates delete markers. If you specify a Filter in your replication configuration, you must also include a DeleteMarkerReplication element. If your Filter includes a Tag element, the DeleteMarkerReplication Status must be set to Disabled, because Amazon S3 does not support replicating delete markers for tag-based rules. For an example configuration, see Basic Rule Configuration .
For more information about delete marker replication, see Basic Rule Configuration .
Note
If you are using an earlier version of the replication configuration, Amazon S3 handles replication of delete markers differently. For more information, see Backward Compatibility .
Status (string) --
Indicates whether to replicate delete markers.
Note
Indicates whether to replicate delete markers.
{'BucketKeyEnabled': 'boolean'}
Retrieves objects from Amazon S3. To use GET , you must have READ access to the object. If you grant READ access to the anonymous user, you can return the object without using an authorization header.
An Amazon S3 bucket has no directory hierarchy such as you would find in a typical computer file system. You can, however, create a logical hierarchy by using object key names that imply a folder structure. For example, instead of naming an object sample.jpg , you can name it photos/2006/February/sample.jpg .
To get an object from such a logical hierarchy, specify the full key name for the object in the GET operation. For a virtual hosted-style request example, if you have the object photos/2006/February/sample.jpg , specify the resource as /photos/2006/February/sample.jpg . For a path-style request example, if you have the object photos/2006/February/sample.jpg in the bucket named examplebucket , specify the resource as /examplebucket/photos/2006/February/sample.jpg . For more information about request types, see HTTP Host Header Bucket Specification .
To distribute large files to many people, you can save bandwidth costs by using BitTorrent. For more information, see Amazon S3 Torrent . For more information about returning the ACL of an object, see GetObjectAcl .
If the object you are retrieving is stored in the S3 Glacier or S3 Glacier Deep Archive storage class, or S3 Intelligent-Tiering Archive or S3 Intelligent-Tiering Deep Archive tiers, before you can retrieve the object you must first restore a copy using RestoreObject . Otherwise, this operation returns an InvalidObjectStateError error. For information about restoring archived objects, see Restoring Archived Objects .
Encryption request headers, like x-amz-server-side-encryption , should not be sent for GET requests if your object uses server-side encryption with CMKs stored in AWS KMS (SSE-KMS) or server-side encryption with Amazon S3–managed encryption keys (SSE-S3). If your object does use these types of keys, you’ll get an HTTP 400 BadRequest error.
If you encrypt an object by using server-side encryption with customer-provided encryption keys (SSE-C) when you store the object in Amazon S3, then when you GET the object, you must use the following headers:
x-amz-server-side-encryption-customer-algorithm
x-amz-server-side-encryption-customer-key
x-amz-server-side-encryption-customer-key-MD5
For more information about SSE-C, see Server-Side Encryption (Using Customer-Provided Encryption Keys) .
Assuming you have permission to read object tags (permission for the s3:GetObjectVersionTagging action), the response also returns the x-amz-tagging-count header that provides the count of number of tags associated with the object. You can use GetObjectTagging to retrieve the tag set associated with an object.
Permissions
You need the s3:GetObject permission for this operation. For more information, see Specifying Permissions in a Policy . If the object you request does not exist, the error Amazon S3 returns depends on whether you also have the s3:ListBucket permission.
If you have the s3:ListBucket permission on the bucket, Amazon S3 will return an HTTP status code 404 ("no such key") error.
If you don’t have the s3:ListBucket permission, Amazon S3 will return an HTTP status code 403 ("access denied") error.
Versioning
By default, the GET operation returns the current version of an object. To return a different version, use the versionId subresource.
Note
If the current version of the object is a delete marker, Amazon S3 behaves as if the object was deleted and includes x-amz-delete-marker: true in the response.
For more information about versioning, see PutBucketVersioning .
Overriding Response Header Values
There are times when you want to override certain response header values in a GET response. For example, you might override the Content-Disposition response header value in your GET request.
You can override values for a set of response headers using the following query parameters. These response header values are sent only on a successful request, that is, when status code 200 OK is returned. The set of headers you can override using these parameters is a subset of the headers that Amazon S3 accepts when you create an object. The response headers that you can override for the GET response are Content-Type , Content-Language , Expires , Cache-Control , Content-Disposition , and Content-Encoding . To override these header values in the GET response, you use the following request parameters.
Note
You must sign the request, either using an Authorization header or a presigned URL, when using these parameters. They cannot be used with an unsigned (anonymous) request.
response-content-type
response-content-language
response-expires
response-cache-control
response-content-disposition
response-content-encoding
Additional Considerations about Request Headers
If both of the If-Match and If-Unmodified-Since headers are present in the request as follows: If-Match condition evaluates to true , and; If-Unmodified-Since condition evaluates to false ; then, S3 returns 200 OK and the data requested.
If both of the If-None-Match and If-Modified-Since headers are present in the request as follows:If-None-Match condition evaluates to false , and; If-Modified-Since condition evaluates to true ; then, S3 returns 304 Not Modified response code.
For more information about conditional requests, see RFC 7232 .
The following operations are related to GetObject :
See also: AWS API Documentation
Request Syntax
client.get_object(
Bucket='string',
IfMatch='string',
IfModifiedSince=datetime(2015, 1, 1),
IfNoneMatch='string',
IfUnmodifiedSince=datetime(2015, 1, 1),
Key='string',
Range='string',
ResponseCacheControl='string',
ResponseContentDisposition='string',
ResponseContentEncoding='string',
ResponseContentLanguage='string',
ResponseContentType='string',
ResponseExpires=datetime(2015, 1, 1),
VersionId='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
RequestPayer='requester',
PartNumber=123,
ExpectedBucketOwner='string'
)
string
[REQUIRED]
The bucket name containing the object.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
string
Return the object only if its entity tag (ETag) is the same as the one specified, otherwise return a 412 (precondition failed).
datetime
Return the object only if it has been modified since the specified time, otherwise return a 304 (not modified).
string
Return the object only if its entity tag (ETag) is different from the one specified, otherwise return a 304 (not modified).
datetime
Return the object only if it has not been modified since the specified time, otherwise return a 412 (precondition failed).
string
[REQUIRED]
Key of the object to get.
string
Downloads the specified range bytes of an object. For more information about the HTTP Range header, see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35 .
Note
Amazon S3 doesn't support retrieving multiple ranges of data per GET request.
string
Sets the Cache-Control header of the response.
string
Sets the Content-Disposition header of the response
string
Sets the Content-Encoding header of the response.
string
Sets the Content-Language header of the response.
string
Sets the Content-Type header of the response.
datetime
Sets the Expires header of the response.
string
VersionId used to reference a specific version of the object.
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
integer
Part number of the object being read. This is a positive integer between 1 and 10,000. Effectively performs a 'ranged' GET request for the part specified. Useful for downloading just a part of an object.
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'Body': StreamingBody(),
'DeleteMarker': True|False,
'AcceptRanges': 'string',
'Expiration': 'string',
'Restore': 'string',
'LastModified': datetime(2015, 1, 1),
'ContentLength': 123,
'ETag': 'string',
'MissingMeta': 123,
'VersionId': 'string',
'CacheControl': 'string',
'ContentDisposition': 'string',
'ContentEncoding': 'string',
'ContentLanguage': 'string',
'ContentRange': 'string',
'ContentType': 'string',
'Expires': datetime(2015, 1, 1),
'WebsiteRedirectLocation': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'Metadata': {
'string': 'string'
},
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'BucketKeyEnabled': True|False,
'StorageClass': 'STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
'RequestCharged': 'requester',
'ReplicationStatus': 'COMPLETE'|'PENDING'|'FAILED'|'REPLICA',
'PartsCount': 123,
'TagCount': 123,
'ObjectLockMode': 'GOVERNANCE'|'COMPLIANCE',
'ObjectLockRetainUntilDate': datetime(2015, 1, 1),
'ObjectLockLegalHoldStatus': 'ON'|'OFF'
}
Response Structure
(dict) --
Body (:class:`.StreamingBody`) --
Object data.
DeleteMarker (boolean) --
Specifies whether the object retrieved was (true) or was not (false) a Delete Marker. If false, this response header does not appear in the response.
AcceptRanges (string) --
Indicates that a range of bytes was specified.
Expiration (string) --
If the object expiration is configured (see PUT Bucket lifecycle), the response includes this header. It includes the expiry-date and rule-id key-value pairs providing object expiration information. The value of the rule-id is URL encoded.
Restore (string) --
Provides information about object restoration operation and expiration time of the restored object copy.
LastModified (datetime) --
Last modified date of the object
ContentLength (integer) --
Size of the body in bytes.
ETag (string) --
An ETag is an opaque identifier assigned by a web server to a specific version of a resource found at a URL.
MissingMeta (integer) --
This is set to the number of metadata entries not returned in x-amz-meta headers. This can happen if you create metadata using an API like SOAP that supports more flexible metadata than the REST API. For example, using SOAP, you can create metadata whose values are not legal HTTP headers.
VersionId (string) --
Version of the object.
CacheControl (string) --
Specifies caching behavior along the request/reply chain.
ContentDisposition (string) --
Specifies presentational information for the object.
ContentEncoding (string) --
Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field.
ContentLanguage (string) --
The language the content is in.
ContentRange (string) --
The portion of the object returned in the response.
ContentType (string) --
A standard MIME type describing the format of the object data.
Expires (datetime) --
The date and time at which the object is no longer cacheable.
WebsiteRedirectLocation (string) --
If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL. Amazon S3 stores the value of this header in the object metadata.
ServerSideEncryption (string) --
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
Metadata (dict) --
A map of metadata to store with the object in S3.
(string) --
(string) --
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
BucketKeyEnabled (boolean) --
Indicates whether the object uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
StorageClass (string) --
Provides storage class information of the object. Amazon S3 returns this header for all objects except for S3 Standard storage class objects.
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
ReplicationStatus (string) --
Amazon S3 can return this if your request involves a bucket that is either a source or destination in a replication rule.
PartsCount (integer) --
The count of parts this object has.
TagCount (integer) --
The number of tags, if any, on the object.
ObjectLockMode (string) --
The Object Lock mode currently in place for this object.
ObjectLockRetainUntilDate (datetime) --
The date and time when this object's Object Lock will expire.
ObjectLockLegalHoldStatus (string) --
Indicates whether this object has an active legal hold. This field is only returned if you have permission to view an object's legal hold status.
{'BucketKeyEnabled': 'boolean'}
The HEAD operation retrieves metadata from an object without returning the object itself. This operation is useful if you're only interested in an object's metadata. To use HEAD, you must have READ access to the object.
A HEAD request has the same options as a GET operation on an object. The response is identical to the GET response except that there is no response body.
If you encrypt an object by using server-side encryption with customer-provided encryption keys (SSE-C) when you store the object in Amazon S3, then when you retrieve the metadata from the object, you must use the following headers:
x-amz-server-side-encryption-customer-algorithm
x-amz-server-side-encryption-customer-key
x-amz-server-side-encryption-customer-key-MD5
For more information about SSE-C, see Server-Side Encryption (Using Customer-Provided Encryption Keys) .
Note
Encryption request headers, like x-amz-server-side-encryption , should not be sent for GET requests if your object uses server-side encryption with CMKs stored in AWS KMS (SSE-KMS) or server-side encryption with Amazon S3–managed encryption keys (SSE-S3). If your object does use these types of keys, you’ll get an HTTP 400 BadRequest error.
Request headers are limited to 8 KB in size. For more information, see Common Request Headers .
Consider the following when using request headers:
Consideration 1 – If both of the If-Match and If-Unmodified-Since headers are present in the request as follows:
If-Match condition evaluates to true , and;
If-Unmodified-Since condition evaluates to false ;
Then Amazon S3 returns 200 OK and the data requested.
Consideration 2 – If both of the If-None-Match and If-Modified-Since headers are present in the request as follows:
If-None-Match condition evaluates to false , and;
If-Modified-Since condition evaluates to true ;
Then Amazon S3 returns the 304 Not Modified response code.
For more information about conditional requests, see RFC 7232 .
Permissions
You need the s3:GetObject permission for this operation. For more information, see Specifying Permissions in a Policy . If the object you request does not exist, the error Amazon S3 returns depends on whether you also have the s3:ListBucket permission.
If you have the s3:ListBucket permission on the bucket, Amazon S3 returns an HTTP status code 404 ("no such key") error.
If you don’t have the s3:ListBucket permission, Amazon S3 returns an HTTP status code 403 ("access denied") error.
The following operation is related to HeadObject :
See also: AWS API Documentation
Request Syntax
client.head_object(
Bucket='string',
IfMatch='string',
IfModifiedSince=datetime(2015, 1, 1),
IfNoneMatch='string',
IfUnmodifiedSince=datetime(2015, 1, 1),
Key='string',
Range='string',
VersionId='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
RequestPayer='requester',
PartNumber=123,
ExpectedBucketOwner='string'
)
string
[REQUIRED]
The name of the bucket containing the object.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
string
Return the object only if its entity tag (ETag) is the same as the one specified, otherwise return a 412 (precondition failed).
datetime
Return the object only if it has been modified since the specified time, otherwise return a 304 (not modified).
string
Return the object only if its entity tag (ETag) is different from the one specified, otherwise return a 304 (not modified).
datetime
Return the object only if it has not been modified since the specified time, otherwise return a 412 (precondition failed).
string
[REQUIRED]
The object key.
string
Downloads the specified range bytes of an object. For more information about the HTTP Range header, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35 .
Note
Amazon S3 doesn't support retrieving multiple ranges of data per GET request.
string
VersionId used to reference a specific version of the object.
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
integer
Part number of the object being read. This is a positive integer between 1 and 10,000. Effectively performs a 'ranged' HEAD request for the part specified. Useful querying about the size of the part and the number of parts in this object.
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'DeleteMarker': True|False,
'AcceptRanges': 'string',
'Expiration': 'string',
'Restore': 'string',
'ArchiveStatus': 'ARCHIVE_ACCESS'|'DEEP_ARCHIVE_ACCESS',
'LastModified': datetime(2015, 1, 1),
'ContentLength': 123,
'ETag': 'string',
'MissingMeta': 123,
'VersionId': 'string',
'CacheControl': 'string',
'ContentDisposition': 'string',
'ContentEncoding': 'string',
'ContentLanguage': 'string',
'ContentType': 'string',
'Expires': datetime(2015, 1, 1),
'WebsiteRedirectLocation': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'Metadata': {
'string': 'string'
},
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'BucketKeyEnabled': True|False,
'StorageClass': 'STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
'RequestCharged': 'requester',
'ReplicationStatus': 'COMPLETE'|'PENDING'|'FAILED'|'REPLICA',
'PartsCount': 123,
'ObjectLockMode': 'GOVERNANCE'|'COMPLIANCE',
'ObjectLockRetainUntilDate': datetime(2015, 1, 1),
'ObjectLockLegalHoldStatus': 'ON'|'OFF'
}
Response Structure
(dict) --
DeleteMarker (boolean) --
Specifies whether the object retrieved was (true) or was not (false) a Delete Marker. If false, this response header does not appear in the response.
AcceptRanges (string) --
Indicates that a range of bytes was specified.
Expiration (string) --
If the object expiration is configured (see PUT Bucket lifecycle), the response includes this header. It includes the expiry-date and rule-id key-value pairs providing object expiration information. The value of the rule-id is URL encoded.
Restore (string) --
If the object is an archived object (an object whose storage class is GLACIER), the response includes this header if either the archive restoration is in progress (see RestoreObject or an archive copy is already restored.
If an archive copy is already restored, the header value indicates when Amazon S3 is scheduled to delete the object copy. For example:
x-amz-restore: ongoing-request="false", expiry-date="Fri, 23 Dec 2012 00:00:00 GMT"
If the object restoration is in progress, the header returns the value ongoing-request="true" .
For more information about archiving objects, see Transitioning Objects: General Considerations .
ArchiveStatus (string) --
The archive state of the head object.
LastModified (datetime) --
Last modified date of the object
ContentLength (integer) --
Size of the body in bytes.
ETag (string) --
An ETag is an opaque identifier assigned by a web server to a specific version of a resource found at a URL.
MissingMeta (integer) --
This is set to the number of metadata entries not returned in x-amz-meta headers. This can happen if you create metadata using an API like SOAP that supports more flexible metadata than the REST API. For example, using SOAP, you can create metadata whose values are not legal HTTP headers.
VersionId (string) --
Version of the object.
CacheControl (string) --
Specifies caching behavior along the request/reply chain.
ContentDisposition (string) --
Specifies presentational information for the object.
ContentEncoding (string) --
Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field.
ContentLanguage (string) --
The language the content is in.
ContentType (string) --
A standard MIME type describing the format of the object data.
Expires (datetime) --
The date and time at which the object is no longer cacheable.
WebsiteRedirectLocation (string) --
If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL. Amazon S3 stores the value of this header in the object metadata.
ServerSideEncryption (string) --
If the object is stored using server-side encryption either with an AWS KMS customer master key (CMK) or an Amazon S3-managed encryption key, the response includes this header with the value of the server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
Metadata (dict) --
A map of metadata to store with the object in S3.
(string) --
(string) --
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
BucketKeyEnabled (boolean) --
Indicates whether the object uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
StorageClass (string) --
Provides storage class information of the object. Amazon S3 returns this header for all objects except for S3 Standard storage class objects.
For more information, see Storage Classes .
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
ReplicationStatus (string) --
Amazon S3 can return this header if your request involves a bucket that is either a source or a destination in a replication rule.
In replication, you have a source bucket on which you configure replication and destination bucket or buckets where Amazon S3 stores object replicas. When you request an object (GetObject ) or object metadata (HeadObject ) from these buckets, Amazon S3 will return the x-amz-replication-status header in the response as follows:
If requesting an object from the source bucket — Amazon S3 will return the x-amz-replication-status header if the object in your request is eligible for replication. For example, suppose that in your replication configuration, you specify object prefix TaxDocs requesting Amazon S3 to replicate objects with key prefix TaxDocs . Any objects you upload with this key name prefix, for example TaxDocs/document1.pdf , are eligible for replication. For any object request with this key name prefix, Amazon S3 will return the x-amz-replication-status header with value PENDING, COMPLETED or FAILED indicating object replication status.
If requesting an object from a destination bucket — Amazon S3 will return the x-amz-replication-status header with value REPLICA if the object in your request is a replica that Amazon S3 created and there is no replica modification replication in progress.
When replicating objects to multiple destination buckets the x-amz-replication-status header acts differently. The header of the source object will only return a value of COMPLETED when replication is successful to all destinations. The header will remain at value PENDING until replication has completed for all destinations. If one or more destinations fails replication the header will return FAILED.
For more information, see Replication .
PartsCount (integer) --
The count of parts this object has.
ObjectLockMode (string) --
The Object Lock mode, if any, that's in effect for this object. This header is only returned if the requester has the s3:GetObjectRetention permission. For more information about S3 Object Lock, see Object Lock .
ObjectLockRetainUntilDate (datetime) --
The date and time when the Object Lock retention period expires. This header is only returned if the requester has the s3:GetObjectRetention permission.
ObjectLockLegalHoldStatus (string) --
Specifies whether a legal hold is in effect for this object. This header is only returned if the requester has the s3:GetObjectLegalHold permission. This header is not returned if the specified version of this object has never had a legal hold applied. For more information about S3 Object Lock, see Object Lock .
{'ServerSideEncryptionConfiguration': {'Rules': {'BucketKeyEnabled': 'boolean'}}}
This operation uses the encryption subresource to configure default encryption and Amazon S3 Bucket Key for an existing bucket.
Default encryption for a bucket can use server-side encryption with Amazon S3-managed keys (SSE-S3) or AWS KMS customer master keys (SSE-KMS). If you specify default encryption using SSE-KMS, you can also configure Amazon S3 Bucket Key. For information about default encryption, see Amazon S3 default bucket encryption in the Amazon Simple Storage Service Developer Guide . For more information about S3 Bucket Keys, see Amazon S3 Bucket Keys in the Amazon Simple Storage Service Developer Guide .
Warning
This operation requires AWS Signature Version 4. For more information, see Authenticating Requests (AWS Signature Version 4) .
To use this operation, you must have permissions to perform the s3:PutEncryptionConfiguration action. The bucket owner has this permission by default. The bucket owner can grant this permission to others. For more information about permissions, see Permissions Related to Bucket Subresource Operations and Managing Access Permissions to Your Amazon S3 Resources in the Amazon Simple Storage Service Developer Guide.
Related Resources
See also: AWS API Documentation
Request Syntax
client.put_bucket_encryption(
Bucket='string',
ContentMD5='string',
ServerSideEncryptionConfiguration={
'Rules': [
{
'ApplyServerSideEncryptionByDefault': {
'SSEAlgorithm': 'AES256'|'aws:kms',
'KMSMasterKeyID': 'string'
},
'BucketKeyEnabled': True|False
},
]
},
ExpectedBucketOwner='string'
)
string
[REQUIRED]
Specifies default encryption for a bucket using server-side encryption with Amazon S3-managed keys (SSE-S3) or customer master keys stored in AWS KMS (SSE-KMS). For information about the Amazon S3 default encryption feature, see Amazon S3 Default Bucket Encryption in the Amazon Simple Storage Service Developer Guide .
string
The base64-encoded 128-bit MD5 digest of the server-side encryption configuration.
For requests made using the AWS Command Line Interface (CLI) or AWS SDKs, this field is calculated automatically.
dict
[REQUIRED]
Specifies the default server-side-encryption configuration.
Rules (list) -- [REQUIRED]
Container for information about a particular server-side encryption configuration rule.
(dict) --
Specifies the default server-side encryption configuration.
ApplyServerSideEncryptionByDefault (dict) --
Specifies the default server-side encryption to apply to new objects in the bucket. If a PUT Object request doesn't specify any server-side encryption, this default encryption will be applied.
SSEAlgorithm (string) -- [REQUIRED]
Server-side encryption algorithm to use for the default encryption.
KMSMasterKeyID (string) --
AWS Key Management Service (KMS) customer master key ID to use for the default encryption. This parameter is allowed if and only if SSEAlgorithm is set to aws:kms .
You can specify the key ID or the Amazon Resource Name (ARN) of the CMK. However, if you are using encryption with cross-account operations, you must use a fully qualified CMK ARN. For more information, see Using encryption for cross-account operations .
For example:
Key ID: 1234abcd-12ab-34cd-56ef-1234567890ab
Key ARN: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab
Warning
Amazon S3 only supports symmetric CMKs and not asymmetric CMKs. For more information, see Using Symmetric and Asymmetric Keys in the AWS Key Management Service Developer Guide .
BucketKeyEnabled (boolean) --
Specifies whether Amazon S3 should use an S3 Bucket Key with server-side encryption using KMS (SSE-KMS) for new objects in the bucket. Existing objects are not affected. Setting the BucketKeyEnabled element to true causes Amazon S3 to use an S3 Bucket Key. By default, S3 Bucket Key is not enabled.
For more information, see Amazon S3 Bucket Keys in the Amazon Simple Storage Service Developer Guide .
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
None
{'ReplicationConfiguration': {'Rules': {'SourceSelectionCriteria': {'ReplicaModifications': {'Status': 'Enabled '
'| '
'Disabled'}}}}}
Creates a replication configuration or replaces an existing one. For more information, see Replication in the Amazon S3 Developer Guide .
Note
To perform this operation, the user or role performing the operation must have the iam:PassRole permission.
Specify the replication configuration in the request body. In the replication configuration, you provide the name of the destination bucket or buckets where you want Amazon S3 to replicate objects, the IAM role that Amazon S3 can assume to replicate objects on your behalf, and other relevant information.
A replication configuration must include at least one rule, and can contain a maximum of 1,000. Each rule identifies a subset of objects to replicate by filtering the objects in the source bucket. To choose additional subsets of objects to replicate, add a rule for each subset.
To specify a subset of the objects in the source bucket to apply a replication rule to, add the Filter element as a child of the Rule element. You can filter objects based on an object key prefix, one or more object tags, or both. When you add the Filter element in the configuration, you must also add the following elements: DeleteMarkerReplication , Status , and Priority .
Note
If you are using an earlier version of the replication configuration, Amazon S3 handles replication of delete markers differently. For more information, see Backward Compatibility .
For information about enabling versioning on a bucket, see Using Versioning .
By default, a resource owner, in this case the AWS account that created the bucket, can perform this operation. The resource owner can also grant others permissions to perform the operation. For more information about permissions, see Specifying Permissions in a Policy and Managing Access Permissions to Your Amazon S3 Resources .
Handling Replication of Encrypted Objects
By default, Amazon S3 doesn't replicate objects that are stored at rest using server-side encryption with CMKs stored in AWS KMS. To replicate AWS KMS-encrypted objects, add the following: SourceSelectionCriteria , SseKmsEncryptedObjects , Status , EncryptionConfiguration , and ReplicaKmsKeyID . For information about replication configuration, see Replicating Objects Created with SSE Using CMKs stored in AWS KMS .
For information on PutBucketReplication errors, see List of replication-related error codes
The following operations are related to PutBucketReplication :
See also: AWS API Documentation
Request Syntax
client.put_bucket_replication(
Bucket='string',
ContentMD5='string',
ReplicationConfiguration={
'Role': 'string',
'Rules': [
{
'ID': 'string',
'Priority': 123,
'Prefix': 'string',
'Filter': {
'Prefix': 'string',
'Tag': {
'Key': 'string',
'Value': 'string'
},
'And': {
'Prefix': 'string',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
]
}
},
'Status': 'Enabled'|'Disabled',
'SourceSelectionCriteria': {
'SseKmsEncryptedObjects': {
'Status': 'Enabled'|'Disabled'
},
'ReplicaModifications': {
'Status': 'Enabled'|'Disabled'
}
},
'ExistingObjectReplication': {
'Status': 'Enabled'|'Disabled'
},
'Destination': {
'Bucket': 'string',
'Account': 'string',
'StorageClass': 'STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
'AccessControlTranslation': {
'Owner': 'Destination'
},
'EncryptionConfiguration': {
'ReplicaKmsKeyID': 'string'
},
'ReplicationTime': {
'Status': 'Enabled'|'Disabled',
'Time': {
'Minutes': 123
}
},
'Metrics': {
'Status': 'Enabled'|'Disabled',
'EventThreshold': {
'Minutes': 123
}
}
},
'DeleteMarkerReplication': {
'Status': 'Enabled'|'Disabled'
}
},
]
},
Token='string',
ExpectedBucketOwner='string'
)
string
[REQUIRED]
The name of the bucket
string
The base64-encoded 128-bit MD5 digest of the data. You must use this header as a message integrity check to verify that the request body was not corrupted in transit. For more information, see RFC 1864 .
For requests made using the AWS Command Line Interface (CLI) or AWS SDKs, this field is calculated automatically.
dict
[REQUIRED]
A container for replication rules. You can add up to 1,000 rules. The maximum size of a replication configuration is 2 MB.
Role (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that Amazon S3 assumes when replicating objects. For more information, see How to Set Up Replication in the Amazon Simple Storage Service Developer Guide .
Rules (list) -- [REQUIRED]
A container for one or more replication rules. A replication configuration must have at least one rule and can contain a maximum of 1,000 rules.
(dict) --
Specifies which Amazon S3 objects to replicate and where to store the replicas.
ID (string) --
A unique identifier for the rule. The maximum value is 255 characters.
Priority (integer) --
The priority indicates which rule has precedence whenever two or more replication rules conflict. Amazon S3 will attempt to replicate objects according to all replication rules. However, if there are two or more rules with the same destination bucket, then objects will be replicated according to the rule with the highest priority. The higher the number, the higher the priority.
For more information, see Replication in the Amazon Simple Storage Service Developer Guide .
Prefix (string) --
An object key name prefix that identifies the object or objects to which the rule applies. The maximum prefix length is 1,024 characters. To include all objects in a bucket, specify an empty string.
Filter (dict) --
A filter that identifies the subset of objects to which the replication rule applies. A Filter must specify exactly one Prefix , Tag , or an And child element.
Prefix (string) --
An object key name prefix that identifies the subset of objects to which the rule applies.
Tag (dict) --
A container for specifying a tag key and value.
The rule applies only to objects that have the tag in their tag set.
Key (string) -- [REQUIRED]
Name of the object key.
Value (string) -- [REQUIRED]
Value of the tag.
And (dict) --
A container for specifying rule filters. The filters determine the subset of objects to which the rule applies. This element is required only if you specify more than one filter. For example:
If you specify both a Prefix and a Tag filter, wrap these filters in an And tag.
If you specify a filter based on multiple tags, wrap the Tag elements in an And tag.
Prefix (string) --
An object key name prefix that identifies the subset of objects to which the rule applies.
Tags (list) --
An array of tags containing key and value pairs.
(dict) --
A container of a key value name pair.
Key (string) -- [REQUIRED]
Name of the object key.
Value (string) -- [REQUIRED]
Value of the tag.
Status (string) -- [REQUIRED]
Specifies whether the rule is enabled.
SourceSelectionCriteria (dict) --
A container that describes additional filters for identifying the source objects that you want to replicate. You can choose to enable or disable the replication of these objects. Currently, Amazon S3 supports only the filter that you can specify for objects created with server-side encryption using a customer master key (CMK) stored in AWS Key Management Service (SSE-KMS).
SseKmsEncryptedObjects (dict) --
A container for filter information for the selection of Amazon S3 objects encrypted with AWS KMS. If you include SourceSelectionCriteria in the replication configuration, this element is required.
Status (string) -- [REQUIRED]
Specifies whether Amazon S3 replicates objects created with server-side encryption using a customer master key (CMK) stored in AWS Key Management Service.
ReplicaModifications (dict) --
A filter that you can specify for selections for modifications on replicas. Amazon S3 doesn't replicate replica modifications by default. In the latest version of replication configuration (when Filter is specified), you can specify this element and set the status to Enabled to replicate modifications on replicas.
Note
If you don't specify the Filter element, Amazon S3 assumes that the replication configuration is the earlier version, V1. In the earlier version, this element is not allowed
Status (string) -- [REQUIRED]
Specifies whether Amazon S3 replicates modifications on replicas.
ExistingObjectReplication (dict) --
Status (string) -- [REQUIRED]
Destination (dict) -- [REQUIRED]
A container for information about the replication destination and its configurations including enabling the S3 Replication Time Control (S3 RTC).
Bucket (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the bucket where you want Amazon S3 to store the results.
Account (string) --
Destination bucket owner account ID. In a cross-account scenario, if you direct Amazon S3 to change replica ownership to the AWS account that owns the destination bucket by specifying the AccessControlTranslation property, this is the account ID of the destination bucket owner. For more information, see Replication Additional Configuration: Changing the Replica Owner in the Amazon Simple Storage Service Developer Guide .
StorageClass (string) --
The storage class to use when replicating objects, such as S3 Standard or reduced redundancy. By default, Amazon S3 uses the storage class of the source object to create the object replica.
For valid values, see the StorageClass element of the PUT Bucket replication action in the Amazon Simple Storage Service API Reference .
AccessControlTranslation (dict) --
Specify this only in a cross-account scenario (where source and destination bucket owners are not the same), and you want to change replica ownership to the AWS account that owns the destination bucket. If this is not specified in the replication configuration, the replicas are owned by same AWS account that owns the source object.
Owner (string) -- [REQUIRED]
Specifies the replica ownership. For default and valid values, see PUT bucket replication in the Amazon Simple Storage Service API Reference .
EncryptionConfiguration (dict) --
A container that provides information about encryption. If SourceSelectionCriteria is specified, you must specify this element.
ReplicaKmsKeyID (string) --
Specifies the ID (Key ARN or Alias ARN) of the customer managed customer master key (CMK) stored in AWS Key Management Service (KMS) for the destination bucket. Amazon S3 uses this key to encrypt replica objects. Amazon S3 only supports symmetric customer managed CMKs. For more information, see Using Symmetric and Asymmetric Keys in the AWS Key Management Service Developer Guide .
ReplicationTime (dict) --
A container specifying S3 Replication Time Control (S3 RTC), including whether S3 RTC is enabled and the time when all objects and operations on objects must be replicated. Must be specified together with a Metrics block.
Status (string) -- [REQUIRED]
Specifies whether the replication time is enabled.
Time (dict) -- [REQUIRED]
A container specifying the time by which replication should be complete for all objects and operations on objects.
Minutes (integer) --
Contains an integer specifying time in minutes.
Valid values: 15 minutes.
Metrics (dict) --
A container specifying replication metrics-related settings enabling replication metrics and events.
Status (string) -- [REQUIRED]
Specifies whether the replication metrics are enabled.
EventThreshold (dict) --
A container specifying the time threshold for emitting the s3:Replication:OperationMissedThreshold event.
Minutes (integer) --
Contains an integer specifying time in minutes.
Valid values: 15 minutes.
DeleteMarkerReplication (dict) --
Specifies whether Amazon S3 replicates delete markers. If you specify a Filter in your replication configuration, you must also include a DeleteMarkerReplication element. If your Filter includes a Tag element, the DeleteMarkerReplication Status must be set to Disabled, because Amazon S3 does not support replicating delete markers for tag-based rules. For an example configuration, see Basic Rule Configuration .
For more information about delete marker replication, see Basic Rule Configuration .
Note
If you are using an earlier version of the replication configuration, Amazon S3 handles replication of delete markers differently. For more information, see Backward Compatibility .
Status (string) --
Indicates whether to replicate delete markers.
Note
Indicates whether to replicate delete markers.
string
A token to allow Object Lock to be enabled for an existing bucket.
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
None
{'BucketKeyEnabled': 'boolean'}
Adds an object to a bucket. You must have WRITE permissions on a bucket to add an object to it.
Amazon S3 never adds partial objects; if you receive a success response, Amazon S3 added the entire object to the bucket.
Amazon S3 is a distributed system. If it receives multiple write requests for the same object simultaneously, it overwrites all but the last object written. Amazon S3 does not provide object locking; if you need this, make sure to build it into your application layer or use versioning instead.
To ensure that data is not corrupted traversing the network, use the Content-MD5 header. When you use this header, Amazon S3 checks the object against the provided MD5 value and, if they do not match, returns an error. Additionally, you can calculate the MD5 while putting an object to Amazon S3 and compare the returned ETag to the calculated MD5 value.
Note
The Content-MD5 header is required for any request to upload an object with a retention period configured using Amazon S3 Object Lock. For more information about Amazon S3 Object Lock, see Amazon S3 Object Lock Overview in the Amazon Simple Storage Service Developer Guide .
Server-side Encryption
You can optionally request server-side encryption. With server-side encryption, Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts the data when you access it. You have the option to provide your own encryption key or use AWS managed encryption keys (SSE-S3 or SSE-KMS). For more information, see Using Server-Side Encryption .
If you request server-side encryption using AWS Key Management Service (SSE-KMS), you can enable an S3 Bucket Key at the object-level. For more information, see Amazon S3 Bucket Keys in the Amazon Simple Storage Service Developer Guide .
Access Control List (ACL)-Specific Request Headers
You can use headers to grant ACL- based permissions. By default, all objects are private. Only the owner has full access control. When adding a new object, you can grant permissions to individual AWS accounts or to predefined groups defined by Amazon S3. These permissions are then added to the ACL on the object. For more information, see Access Control List (ACL) Overview and Managing ACLs Using the REST API .
Storage Class Options
By default, Amazon S3 uses the STANDARD Storage Class to store newly created objects. The STANDARD storage class provides high durability and high availability. Depending on performance needs, you can specify a different Storage Class. Amazon S3 on Outposts only uses the OUTPOSTS Storage Class. For more information, see Storage Classes in the Amazon S3 Service Developer Guide .
Versioning
If you enable versioning for a bucket, Amazon S3 automatically generates a unique version ID for the object being stored. Amazon S3 returns this ID in the response. When you enable versioning for a bucket, if Amazon S3 receives multiple write requests for the same object simultaneously, it stores all of the objects.
For more information about versioning, see Adding Objects to Versioning Enabled Buckets . For information about returning the versioning state of a bucket, see GetBucketVersioning .
Related Resources
See also: AWS API Documentation
Request Syntax
client.put_object(
ACL='private'|'public-read'|'public-read-write'|'authenticated-read'|'aws-exec-read'|'bucket-owner-read'|'bucket-owner-full-control',
Body=b'bytes'|file,
Bucket='string',
CacheControl='string',
ContentDisposition='string',
ContentEncoding='string',
ContentLanguage='string',
ContentLength=123,
ContentMD5='string',
ContentType='string',
Expires=datetime(2015, 1, 1),
GrantFullControl='string',
GrantRead='string',
GrantReadACP='string',
GrantWriteACP='string',
Key='string',
Metadata={
'string': 'string'
},
ServerSideEncryption='AES256'|'aws:kms',
StorageClass='STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS',
WebsiteRedirectLocation='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
SSEKMSKeyId='string',
SSEKMSEncryptionContext='string',
BucketKeyEnabled=True|False,
RequestPayer='requester',
Tagging='string',
ObjectLockMode='GOVERNANCE'|'COMPLIANCE',
ObjectLockRetainUntilDate=datetime(2015, 1, 1),
ObjectLockLegalHoldStatus='ON'|'OFF',
ExpectedBucketOwner='string'
)
string
The canned ACL to apply to the object. For more information, see Canned ACL .
This action is not supported by Amazon S3 on Outposts.
bytes or seekable file-like object
Object data.
string
[REQUIRED]
The bucket name to which the PUT operation was initiated.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
string
Can be used to specify caching behavior along the request/reply chain. For more information, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9 .
string
Specifies presentational information for the object. For more information, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.5.1 .
string
Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field. For more information, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.11 .
string
The language the content is in.
integer
Size of the body in bytes. This parameter is useful when the size of the body cannot be determined automatically. For more information, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.13 .
string
The base64-encoded 128-bit MD5 digest of the message (without the headers) according to RFC 1864. This header can be used as a message integrity check to verify that the data is the same data that was originally sent. Although it is optional, we recommend using the Content-MD5 mechanism as an end-to-end integrity check. For more information about REST request authentication, see REST Authentication .
string
A standard MIME type describing the format of the contents. For more information, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.17 .
datetime
The date and time at which the object is no longer cacheable. For more information, see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.21 .
string
Gives the grantee READ, READ_ACP, and WRITE_ACP permissions on the object.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to read the object data and its metadata.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to read the object ACL.
This action is not supported by Amazon S3 on Outposts.
string
Allows grantee to write the ACL for the applicable object.
This action is not supported by Amazon S3 on Outposts.
string
[REQUIRED]
Object key for which the PUT operation was initiated.
dict
A map of metadata to store with the object in S3.
(string) --
(string) --
string
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
string
By default, Amazon S3 uses the STANDARD Storage Class to store newly created objects. The STANDARD storage class provides high durability and high availability. Depending on performance needs, you can specify a different Storage Class. Amazon S3 on Outposts only uses the OUTPOSTS Storage Class. For more information, see Storage Classes in the Amazon S3 Service Developer Guide .
string
If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL. Amazon S3 stores the value of this header in the object metadata. For information about object metadata, see Object Key and Metadata .
In the following example, the request header sets the redirect to an object (anotherPage.html) in the same bucket:
x-amz-website-redirect-location: /anotherPage.html
In the following example, the request header sets the object redirect to another website:
x-amz-website-redirect-location: http://www.example.com/
For more information about website hosting in Amazon S3, see Hosting Websites on Amazon S3 and How to Configure Website Page Redirects .
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
If x-amz-server-side-encryption is present and has the value of aws:kms , this header specifies the ID of the AWS Key Management Service (AWS KMS) symmetrical customer managed customer master key (CMK) that was used for the object.
If the value of x-amz-server-side-encryption is aws:kms , this header specifies the ID of the symmetric customer managed AWS KMS CMK that will be used for the object. If you specify x-amz-server-side-encryption:aws:kms , but do not provide``x-amz-server-side-encryption-aws-kms-key-id`` , Amazon S3 uses the AWS managed CMK in AWS to protect the data.
string
Specifies the AWS KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
boolean
Specifies whether Amazon S3 should use an S3 Bucket Key for object encryption with server-side encryption using AWS KMS (SSE-KMS). Setting this header to true causes Amazon S3 to use an S3 Bucket Key for object encryption with SSE-KMS.
Specifying this header with a PUT operation doesn’t affect bucket-level settings for S3 Bucket Key.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
string
The tag-set for the object. The tag-set must be encoded as URL Query parameters. (For example, "Key1=Value1")
string
The Object Lock mode that you want to apply to this object.
datetime
The date and time when you want this object's Object Lock to expire.
string
Specifies whether a legal hold will be applied to this object. For more information about S3 Object Lock, see Object Lock .
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'Expiration': 'string',
'ETag': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'VersionId': 'string',
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'SSEKMSEncryptionContext': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
Expiration (string) --
If the expiration is configured for the object (see PutBucketLifecycleConfiguration ), the response includes this header. It includes the expiry-date and rule-id key-value pairs that provide information about object expiration. The value of the rule-id is URL encoded.
ETag (string) --
Entity tag for the uploaded object.
ServerSideEncryption (string) --
If you specified server-side encryption either with an AWS KMS customer master key (CMK) or Amazon S3-managed encryption key in your PUT request, the response includes this header. It confirms the encryption algorithm that Amazon S3 used to encrypt the object.
VersionId (string) --
Version of the object.
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If x-amz-server-side-encryption is present and has the value of aws:kms , this header specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
SSEKMSEncryptionContext (string) --
If present, specifies the AWS KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
BucketKeyEnabled (boolean) --
Indicates whether the uploaded object uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
{'BucketKeyEnabled': 'boolean'}
Uploads a part in a multipart upload.
Note
In this operation, you provide part data in your request. However, you have an option to specify your existing Amazon S3 object as a data source for the part you are uploading. To upload a part from an existing object, you use the UploadPartCopy operation.
You must initiate a multipart upload (see CreateMultipartUpload ) before you can upload any part. In response to your initiate request, Amazon S3 returns an upload ID, a unique identifier, that you must include in your upload part request.
Part numbers can be any number from 1 to 10,000, inclusive. A part number uniquely identifies a part and also defines its position within the object being created. If you upload a new part using the same part number that was used with a previous part, the previously uploaded part is overwritten. Each part must be at least 5 MB in size, except the last part. There is no size limit on the last part of your multipart upload.
To ensure that data is not corrupted when traversing the network, specify the Content-MD5 header in the upload part request. Amazon S3 checks the part data against the provided MD5 value. If they do not match, Amazon S3 returns an error.
If the upload request is signed with Signature Version 4, then AWS S3 uses the x-amz-content-sha256 header as a checksum instead of Content-MD5 . For more information see Authenticating Requests: Using the Authorization Header (AWS Signature Version 4) .
Note: After you initiate multipart upload and upload one or more parts, you must either complete or abort multipart upload in order to stop getting charged for storage of the uploaded parts. Only after you either complete or abort multipart upload, Amazon S3 frees up the parts storage and stops charging you for the parts storage.
For more information on multipart uploads, go to Multipart Upload Overview in the Amazon Simple Storage Service Developer Guide .
For information on the permissions required to use the multipart upload API, go to Multipart Upload API and Permissions in the Amazon Simple Storage Service Developer Guide .
You can optionally request server-side encryption where Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts it for you when you access it. You have the option of providing your own encryption key, or you can use the AWS managed encryption keys. If you choose to provide your own encryption key, the request headers you provide in the request must match the headers you used in the request to initiate the upload by using CreateMultipartUpload . For more information, go to Using Server-Side Encryption in the Amazon Simple Storage Service Developer Guide .
Server-side encryption is supported by the S3 Multipart Upload actions. Unless you are using a customer-provided encryption key, you don't need to specify the encryption parameters in each UploadPart request. Instead, you only need to specify the server-side encryption parameters in the initial Initiate Multipart request. For more information, see CreateMultipartUpload .
If you requested server-side encryption using a customer-provided encryption key in your initiate multipart upload request, you must provide identical encryption information in each part upload using the following headers.
x-amz-server-side-encryption-customer-algorithm
x-amz-server-side-encryption-customer-key
x-amz-server-side-encryption-customer-key-MD5
Special Errors
Code: NoSuchUpload
Cause: 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
SOAP Fault Code Prefix: Client
Related Resources
See also: AWS API Documentation
Request Syntax
client.upload_part(
Body=b'bytes'|file,
Bucket='string',
ContentLength=123,
ContentMD5='string',
Key='string',
PartNumber=123,
UploadId='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
RequestPayer='requester',
ExpectedBucketOwner='string'
)
bytes or seekable file-like object
Object data.
string
[REQUIRED]
The name of the bucket to which the multipart upload was initiated.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
integer
Size of the body in bytes. This parameter is useful when the size of the body cannot be determined automatically.
string
The base64-encoded 128-bit MD5 digest of the part data. This parameter is auto-populated when using the command from the CLI. This parameter is required if object lock parameters are specified.
string
[REQUIRED]
Object key for which the multipart upload was initiated.
integer
[REQUIRED]
Part number of part being uploaded. This is a positive integer between 1 and 10,000.
string
[REQUIRED]
Upload ID identifying the multipart upload whose part is being uploaded.
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
string
The account id of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'ServerSideEncryption': 'AES256'|'aws:kms',
'ETag': 'string',
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
ServerSideEncryption (string) --
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
ETag (string) --
Entity tag for the uploaded object.
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) was used for the object.
BucketKeyEnabled (boolean) --
Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
{'BucketKeyEnabled': 'boolean'}
Uploads a part by copying data from an existing object as data source. You specify the data source by adding the request header x-amz-copy-source in your request and a byte range by adding the request header x-amz-copy-source-range in your request.
The minimum allowable part size for a multipart upload is 5 MB. For more information about multipart upload limits, go to Quick Facts in the Amazon Simple Storage Service Developer Guide .
Note
Instead of using an existing object as part data, you might use the UploadPart operation and provide data in your request.
You must initiate a multipart upload before you can upload any part. In response to your initiate request. Amazon S3 returns a unique identifier, the upload ID, that you must include in your upload part request.
For more information about using the UploadPartCopy operation, see the following:
For conceptual information about multipart uploads, see Uploading Objects Using Multipart Upload in the Amazon Simple Storage Service Developer Guide .
For information about permissions required to use the multipart upload API, see Multipart Upload API and Permissions in the Amazon Simple Storage Service Developer Guide .
For information about copying objects using a single atomic operation vs. the multipart upload, see Operations on Objects in the Amazon Simple Storage Service Developer Guide .
For information about using server-side encryption with customer-provided encryption keys with the UploadPartCopy operation, see CopyObject and UploadPart .
Note the following additional considerations about the request headers x-amz-copy-source-if-match , x-amz-copy-source-if-none-match , x-amz-copy-source-if-unmodified-since , and x-amz-copy-source-if-modified-since :
Consideration 1 - If both of the x-amz-copy-source-if-match and x-amz-copy-source-if-unmodified-since headers are present in the request as follows: x-amz-copy-source-if-match condition evaluates to true , and; x-amz-copy-source-if-unmodified-since condition evaluates to false ; Amazon S3 returns 200 OK and copies the data.
Consideration 2 - If both of the x-amz-copy-source-if-none-match and x-amz-copy-source-if-modified-since headers are present in the request as follows: x-amz-copy-source-if-none-match condition evaluates to false , and; x-amz-copy-source-if-modified-since condition evaluates to true ; Amazon S3 returns 412 Precondition Failed response code.
Versioning
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 object to copy. If the current version is a delete marker and you don't specify a versionId in the x-amz-copy-source , Amazon S3 returns a 404 error, because the object does not exist. If you specify versionId in the x-amz-copy-source and the versionId is a delete marker, Amazon S3 returns an HTTP 400 error, because you are not allowed to specify a delete marker as a version for the x-amz-copy-source .
You can optionally specify a specific version of the source object to copy by adding the versionId subresource as shown in the following example:
x-amz-copy-source: /bucket/object?versionId=version id
Special Errors
Code: NoSuchUpload
Cause: 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
Code: InvalidRequest
Cause: The specified copy source is not supported as a byte-range copy source.
HTTP Status Code: 400 Bad Request
Related Resources
See also: AWS API Documentation
Request Syntax
client.upload_part_copy(
Bucket='string',
CopySource='string',
CopySourceIfMatch='string',
CopySourceIfModifiedSince=datetime(2015, 1, 1),
CopySourceIfNoneMatch='string',
CopySourceIfUnmodifiedSince=datetime(2015, 1, 1),
CopySourceRange='string',
Key='string',
PartNumber=123,
UploadId='string',
SSECustomerAlgorithm='string',
SSECustomerKey=b'bytes',
SSECustomerKeyMD5='string',
CopySourceSSECustomerAlgorithm='string',
CopySourceSSECustomerKey=b'bytes',
CopySourceSSECustomerKeyMD5='string',
RequestPayer='requester',
ExpectedBucketOwner='string',
ExpectedSourceBucketOwner='string'
)
string
[REQUIRED]
The bucket name.
When using this API with an access point, 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 operation with an access point through the AWS 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 Simple Storage Service Developer Guide .
When using this API 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 using this operation using S3 on Outposts through the AWS SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using S3 on Outposts in the Amazon Simple Storage Service Developer Guide .
string
[REQUIRED]
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 bucket awsexamplebucket , use awsexamplebucket/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 object reports/january.pdf through access point my-access-point owned by account 123456789012 in Region us-west-2 , use the URL encoding of arn: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 AWS Region.
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 object reports/january.pdf through outpost my-outpost owned by account 123456789012 in Region us-west-2 , use the URL encoding of arn:aws:s3-outposts:us-west-2:123456789012:outpost/my-outpost/object/reports/january.pdf . The value must be URL encoded.
To copy a specific version of an object, append ?versionId=<version-id> to the value (for example, awsexamplebucket/reports/january.pdf?versionId=QUpfdndhfd8438MNFDN93jdnJFkdmqnh893 ). If you don't specify a version ID, Amazon S3 copies the latest version of the source object.
string
Copies the object if its entity tag (ETag) matches the specified tag.
datetime
Copies the object if it has been modified since the specified time.
string
Copies the object if its entity tag (ETag) is different than the specified ETag.
datetime
Copies the object if it hasn't been modified since the specified time.
string
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.
string
[REQUIRED]
Object key for which the multipart upload was initiated.
integer
[REQUIRED]
Part number of part being copied. This is a positive integer between 1 and 10,000.
string
[REQUIRED]
Upload ID identifying the multipart upload whose part is being copied.
string
Specifies the algorithm to use to when encrypting the object (for example, AES256).
bytes
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.
string
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.
string
Specifies the algorithm to use when decrypting the source object (for example, AES256).
bytes
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.
string
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.
string
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 Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide .
string
The account id of the expected destination bucket owner. If the destination bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
string
The account id of the expected source bucket owner. If the source bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.
dict
Response Syntax
{
'CopySourceVersionId': 'string',
'CopyPartResult': {
'ETag': 'string',
'LastModified': datetime(2015, 1, 1)
},
'ServerSideEncryption': 'AES256'|'aws:kms',
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
CopySourceVersionId (string) --
The version of the source object that was copied, if you have enabled versioning on the source bucket.
CopyPartResult (dict) --
Container for all response elements.
ETag (string) --
Entity tag of the object.
LastModified (datetime) --
Date and time at which the object was uploaded.
ServerSideEncryption (string) --
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the AWS Key Management Service (AWS KMS) symmetric customer managed customer master key (CMK) that was used for the object.
BucketKeyEnabled (boolean) --
Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with AWS KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.