s3_head_bucket: You can use this operation to determine if a bucket exists...

In paws.storage: 'Amazon Web Services' Storage Services

You can use this operation to determine if a bucket exists and if you have permission to access it

Description

You can use this operation to determine if a bucket exists and if you have permission to access it. The action returns a ⁠200 OK⁠ HTTP status code if the bucket exists and you have permission to access it. You can make a head_bucket call on any bucket name to any Region in the partition, and regardless of the permissions on the bucket, you will receive a response header with the correct bucket location so that you can then make a proper, signed request to the appropriate Regional endpoint.

See https://www.paws-r-sdk.com/docs/s3_head_bucket/ for full documentation.

Usage

s3_head_bucket(Bucket, ExpectedBucketOwner = NULL)

Arguments

Bucket

[required] The bucket name. 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, amzn-s3-demo-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 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 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. Object Lambda access points - When you use this API operation with an Object Lambda access point, provide the alias of the Object Lambda access point in place of the bucket name. If the Object Lambda access point alias in a request is not valid, the error code InvalidAccessPointAliasError is returned. For more information about InvalidAccessPointAliasError, see List of Error Codes. Object Lambda access points are not supported by directory buckets. 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 form AccessPointName-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, see What is S3 on Outposts? in the Amazon S3 User Guide.

ExpectedBucketOwner

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).

paws.storage documentation built on May 30, 2026, 9:13 a.m.