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

Name of the bucket to which the multipart upload was initiated.

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

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

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

Required: Yes

Uploads the object only if the ETag (entity tag) value provided during the WRITE operation matches the ETag of the object in S3. If the ETag values do not match, the operation returns a412 Precondition Failed error.

If a conflicting operation occurs during the upload S3 returns a409 ConditionalRequestConflict response. On a 409 failure you should fetch the object's ETag, re-initiate the multipart upload withCreateMultipartUpload, and re-upload each part.

Expects the ETag value as a string.

For more information about conditional requests, seeRFC 7232, orConditional requests in theAmazon S3 User Guide.

Uploads the object only if the object key name does not already exist in the bucket specified. Otherwise, Amazon S3 returns a412 Precondition Failed error.

If a conflicting operation occurs during the upload S3 returns a409 ConditionalRequestConflict response. On a 409 failure you should re-initiate the multipart upload withCreateMultipartUpload and re-upload each part.

Expects the '*' (asterisk) character.

For more information about conditional requests, seeRFC 7232, orConditional requests in theAmazon S3 User Guide.

Object key for which the multipart upload was initiated.

Length Constraints: Minimum length of 1.

Required: Yes

ID for the initiated multipart upload.

Required: Yes

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 32-bitCRC32 checksum of the object. For more information, seeChecking object integrity in theAmazon S3 User Guide.

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 32-bitCRC32C checksum of the object. For more information, seeChecking object integrity in theAmazon S3 User Guide.

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 64-bitCRC64NVME checksum of the object. TheCRC64NVME checksum is always a full object checksum. For more information, seeChecking object integrity in the Amazon S3 User Guide.

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 160-bitSHA1 digest of the object. For more information, seeChecking object integrity in theAmazon S3 User Guide.

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 256-bitSHA256 digest of the object. For more information, seeChecking object integrity in theAmazon S3 User Guide.

This header specifies the checksum type of the object, which determines how part-level checksums are combined to create an object-level checksum for multipart objects. You can use this header as a data integrity check to verify that the checksum type that is received is the same checksum that was specified. If the checksum type doesn’t match the checksum type that was specified for the object during theCreateMultipartUpload request, it’ll result in aBadDigest error. For more information, see Checking object integrity in the Amazon S3 User Guide.

Valid Values:COMPOSITE | FULL_OBJECT

The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code403 Forbidden (access denied).

The expected total object size of the multipart upload request. If there’s a mismatch between the specified object size value and the actual object size value, it results in anHTTP 400 InvalidRequest error.

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

Valid Values:requester

The server-side encryption (SSE) algorithm used to encrypt the object. This parameter is required only when the object was created using a checksum algorithm or if your bucket policy requires the use of SSE-C. For more information, seeProtecting data using SSE-C keys in theAmazon S3 User Guide.

The server-side encryption (SSE) customer managed key. This parameter is needed only when the object was created using a checksum algorithm. For more information, seeProtecting data using SSE-C keys in theAmazon S3 User Guide.

The MD5 server-side encryption (SSE) customer managed key. This parameter is needed only when the object was created using a checksum algorithm. For more information, seeProtecting data using SSE-C keys in theAmazon S3 User Guide.

Root level tag for the CompleteMultipartUpload parameters.

Required: Yes

Array of CompletedPart data types.

If you do not supply a validPart with your request, the service sends back an HTTP 400 response.

Type: Array ofCompletedPart data types

Required: No

If the object expiration is configured, this will contain the expiration date (expiry-date) and rule ID (rule-id). The value ofrule-id is URL-encoded.

If present, indicates that the requester was successfully charged for the request. For more information, seeUsing Requester Pays buckets for storage transfers and usage in theAmazon Simple Storage Service user guide.

Valid Values:requester

The server-side encryption algorithm used when storing this object in Amazon S3.

Valid Values:AES256 | aws:fsx | aws:kms | aws:kms:dsse

If present, indicates the ID of the KMS key that was used for object encryption.

Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with AWS Key Management Service (AWS KMS) keys (SSE-KMS).

Version ID of the newly created object, in case the bucket has versioning turned on.

Root level tag for the CompleteMultipartUploadResult parameters.

Required: Yes

The name of the bucket that contains the newly created object. Does not return the access point ARN or access point alias if used.

Type: String

The Base64 encoded, 32-bitCRC32 checksum of the object. This checksum is only present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in theAmazon S3 User Guide.

Type: String

The Base64 encoded, 32-bitCRC32C checksum of the object. This checksum is only present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in theAmazon S3 User Guide.

Type: String

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 64-bitCRC64NVME checksum of the object. TheCRC64NVME checksum is always a full object checksum. For more information, seeChecking object integrity in the Amazon S3 User Guide.

Type: String

The Base64 encoded, 160-bitSHA1 digest of the object. This checksum is only present if the checksum was uploaded with the object. When you use the API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in theAmazon S3 User Guide.

Type: String

The Base64 encoded, 256-bitSHA256 digest of the object. This checksum is only present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in theAmazon S3 User Guide.

Type: String

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

Type: String

Valid Values:COMPOSITE | FULL_OBJECT

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. For more information about how the entity tag is calculated, seeChecking object integrity in theAmazon S3 User Guide.

Type: String

The object key of the newly created object.

Type: String

Length Constraints: Minimum length of 1.

The URI that identifies the newly created object.

Type: String