Struct aws_sdk_s3::input::HeadObjectInput

#[non_exhaustive]
pub struct HeadObjectInput {

    pub bucket: Option<String>,
    pub if_match: Option<String>,
    pub if_modified_since: Option<DateTime>,
    pub if_none_match: Option<String>,
    pub if_unmodified_since: Option<DateTime>,
    pub key: Option<String>,
    pub range: Option<String>,
    pub version_id: Option<String>,
    pub sse_customer_algorithm: Option<String>,
    pub sse_customer_key: Option<String>,
    pub sse_customer_key_md5: Option<String>,
    pub request_payer: Option<RequestPayer>,
    pub part_number: i32,
    pub expected_bucket_owner: Option<String>,
}

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

bucket: Option<String>

The name of the bucket containing the object.

When using this action 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 action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide.

When using 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 using this action using S3 on Outposts through the Amazon Web Services 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 S3 User Guide.

if_match: Option<String>

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

if_modified_since: Option<DateTime>

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

if_none_match: Option<String>

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

if_unmodified_since: Option<DateTime>

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

key: Option<String>

The object key.

range: Option<String>

Because HeadObject returns only the metadata for an object, this parameter has no effect.

version_id: Option<String>

VersionId used to reference a specific version of the object.

sse_customer_algorithm: Option<String>

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

sse_customer_key: Option<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.

sse_customer_key_md5: Option<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.

request_payer: Option<RequestPayer>

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 User Guide.

part_number: i32

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.

expected_bucket_owner: Option<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.

Implementations

impl HeadObjectInput

pub async fn make_operation(
    &self,
    _config: &Config
) -> Result<Operation<HeadObject, AwsErrorRetryPolicy>, BuildError>

Consumes the builder and constructs an Operation<HeadObject>

pub fn builder() -> Builder

Creates a new builder-style object to manufacture HeadObjectInput

impl HeadObjectInput

pub fn bucket(&self) -> Option<&str>

The name of the bucket containing the object.

When using this action 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 action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide.

When using 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 using this action using S3 on Outposts through the Amazon Web Services 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 S3 User Guide.

pub fn if_match(&self) -> Option<&str>

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

pub fn if_modified_since(&self) -> Option<&DateTime>

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

pub fn if_none_match(&self) -> Option<&str>

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

pub fn if_unmodified_since(&self) -> Option<&DateTime>

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

pub fn key(&self) -> Option<&str>

The object key.

pub fn range(&self) -> Option<&str>

Because HeadObject returns only the metadata for an object, this parameter has no effect.

pub fn version_id(&self) -> Option<&str>

VersionId used to reference a specific version of the object.

pub fn sse_customer_algorithm(&self) -> Option<&str>

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

pub fn sse_customer_key(&self) -> Option<&str>

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.

pub fn sse_customer_key_md5(&self) -> Option<&str>

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.

pub fn request_payer(&self) -> Option<&RequestPayer>

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 User Guide.

pub fn part_number(&self) -> i32

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.

pub fn expected_bucket_owner(&self) -> Option<&str>

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.

Trait Implementations

impl Clone for HeadObjectInput

fn clone(&self) -> HeadObjectInput

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HeadObjectInput

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<HeadObjectInput> for HeadObjectInput

fn eq(&self, other: &HeadObjectInput) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &HeadObjectInput) -> bool

This method tests for !=.

impl StructuralPartialEq for HeadObjectInput