Class: Aws::S3::Types::HeadObjectRequest

Inherits:
Struct
  • Object
show all
Includes:
Aws::Structure
Defined in:
lib/aws-sdk-s3/types.rb

Overview

See Also:

Constant Summary collapse

SENSITIVE = 
[:sse_customer_key]

Instance Attribute Summary collapse

Instance Attribute Details

#bucket ⇒ String

The name of the bucket that contains the object.

**Directory buckets** - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format ‘ Bucket-name.s3express-zone-id.region-code.amazonaws.com`. Path-style requests are not supported. Directory bucket names must be unique in the chosen Zone (Availability Zone or Local Zone). Bucket names must follow the format ` bucket-base-name–zone-id–x-s3` (for example, ` DOC-EXAMPLE-BUCKET–usw2-az1–x-s3`). For information about bucket naming restrictions, see [Directory bucket naming rules] in the *Amazon S3 User Guide*.

**Access points** - When you use this action with an access point, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. When using the access point ARN, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName-AccountId.s3-accesspoint.Region.amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see

Using access points][2

in the *Amazon S3 User Guide*.

<note markdown=“1”> Access points and Object Lambda access points are not supported by directory buckets.

</note>

**S3 on Outposts** - When you use this action with Amazon S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form ‘ AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com`. When you use this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts access point ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see

What is S3 on Outposts?][3

in the *Amazon S3 User Guide*.

[1]: docs.aws.amazon.com/AmazonS3/latest/userguide/directory-bucket-naming-rules.html [2]: docs.aws.amazon.com/AmazonS3/latest/userguide/using-access-points.html [3]: docs.aws.amazon.com/AmazonS3/latest/userguide/S3onOutposts.html

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#checksum_mode ⇒ String

To retrieve the checksum, this parameter must be enabled.

**General purpose buckets** - If you enable checksum mode and the object is uploaded with a [checksum] and encrypted with an Key Management Service (KMS) key, you must have permission to use the ‘kms:Decrypt` action to retrieve the checksum.

**Directory buckets** - If you enable ‘ChecksumMode` and the object is encrypted with Amazon Web Services Key Management Service (Amazon Web Services KMS), you must also have the `kms:GenerateDataKey` and `kms:Decrypt` permissions in IAM identity-based policies and KMS key policies for the KMS key to retrieve the checksum of the object.

[1]: docs.aws.amazon.com/AmazonS3/latest/API/API_Checksum.html

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#expected_bucket_owner ⇒ String

The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code ‘403 Forbidden` (access denied).

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#if_match ⇒ String

Return the object only if its entity tag (ETag) is the same as the one specified; otherwise, return a 412 (precondition failed) error.

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.

For more information about conditional requests, see [RFC 7232].

[1]: tools.ietf.org/html/rfc7232

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#if_modified_since ⇒ Time

Return the object only if it has been modified since the specified time; otherwise, return a 304 (not modified) error.

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].

[1]: tools.ietf.org/html/rfc7232

Returns:

  • (Time) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#if_none_match ⇒ String

Return the object only if its entity tag (ETag) is different from the one specified; otherwise, return a 304 (not modified) error.

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].

[1]: tools.ietf.org/html/rfc7232

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#if_unmodified_since ⇒ Time

Return the object only if it has not been modified since the specified time; otherwise, return a 412 (precondition failed) error.

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.

For more information about conditional requests, see [RFC 7232].

[1]: tools.ietf.org/html/rfc7232

Returns:

  • (Time) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#key ⇒ String

The object key.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#part_number ⇒ 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.

Returns:

  • (Integer) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#range ⇒ String

HeadObject returns only the metadata for an object. If the Range is satisfiable, only the ‘ContentLength` is affected in the response. If the Range is not satisfiable, S3 returns a `416 - Requested Range Not Satisfiable` error.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#request_payer ⇒ String

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

<note markdown=“1”> This functionality is not supported for directory buckets.

</note>

[1]: docs.aws.amazon.com/AmazonS3/latest/dev/ObjectsinRequesterPaysBuckets.html

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#response_cache_control ⇒ String

Sets the ‘Cache-Control` header of the response.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#response_content_disposition ⇒ String

Sets the ‘Content-Disposition` header of the response.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#response_content_encoding ⇒ String

Sets the ‘Content-Encoding` header of the response.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#response_content_language ⇒ String

Sets the ‘Content-Language` header of the response.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#response_content_type ⇒ String

Sets the ‘Content-Type` header of the response.

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#response_expires ⇒ Time

Sets the ‘Expires` header of the response.

Returns:

  • (Time) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#sse_customer_algorithm ⇒ String

Specifies the algorithm to use when encrypting the object (for example, AES256).

<note markdown=“1”> This functionality is not supported for directory buckets.

</note>

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#sse_customer_key ⇒ String

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.

<note markdown=“1”> This functionality is not supported for directory buckets.

</note>

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#sse_customer_key_md5 ⇒ 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.

<note markdown=“1”> This functionality is not supported for directory buckets.

</note>

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end

#version_id ⇒ String

Version ID used to reference a specific version of the object.

<note markdown=“1”> For directory buckets in this API operation, only the ‘null` value of the version ID is supported.

</note>

Returns:

  • (String) 


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# File 'lib/aws-sdk-s3/types.rb', line 9134

class HeadObjectRequest < Struct.new(
  :bucket,
  :if_match,
  :if_modified_since,
  :if_none_match,
  :if_unmodified_since,
  :key,
  :range,
  :response_cache_control,
  :response_content_disposition,
  :response_content_encoding,
  :response_content_language,
  :response_content_type,
  :response_expires,
  :version_id,
  :sse_customer_algorithm,
  :sse_customer_key,
  :sse_customer_key_md5,
  :request_payer,
  :part_number,
  :expected_bucket_owner,
  :checksum_mode)
  SENSITIVE = [:sse_customer_key]
  include Aws::Structure
end