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            Returns the policy of a specified bucket.
            
              Directory buckets  - For directory buckets, you must make requests for this
            API operation to the Regional endpoint. These endpoints support path-style requests
            in the format https://s3express-control.region-code.amazonaws.com/bucket-name. Virtual-hosted-style requests aren't supported. For more information about endpoints
            in Availability Zones, see Regional
            and Zonal endpoints for directory buckets in Availability Zones in the Amazon
            S3 User Guide. For more information about endpoints in Local Zones, see Concepts
            for directory buckets in Local Zones in the Amazon S3 User Guide.
            
            If you are using an identity other than the root user of the Amazon Web Services account
            that owns the bucket, the calling identity must both have the GetBucketPolicy
            permissions on the specified bucket and belong to the bucket owner's account in order
            to use this operation.
            
            If you don't have GetBucketPolicy permissions, Amazon S3 returns a 403 Access
            Denied error. If you have the correct permissions, but you're not using an identity
            that belongs to the bucket owner's account, Amazon S3 returns a 405 Method Not
            Allowed error.
            
            To ensure that bucket owners don't inadvertently lock themselves out of their own
            buckets, the root principal in a bucket owner's Amazon Web Services account can perform
            the GetBucketPolicy, PutBucketPolicy, and DeleteBucketPolicy
            API actions, even if their bucket policy explicitly denies the root principal's access.
            Bucket owner root principals can only be blocked from performing these API actions
            by VPC endpoint policies and Amazon Web Services Organizations policies.
            
General purpose bucket permissions - The s3:GetBucketPolicy permission
            is required in a policy. For more information about general purpose buckets bucket
            policies, see Using
            Bucket Policies and User Policies in the Amazon S3 User Guide.
            
Directory bucket permissions - To grant access to this API operation, you
            must have the s3express:GetBucketPolicy permission in an IAM identity-based
            policy instead of a bucket policy. Cross-account access to this API operation isn't
            supported. This operation can only be performed by the Amazon Web Services account
            that owns the resource. For more information about directory bucket policies and permissions,
            see Amazon
            Web Services Identity and Access Management (IAM) for S3 Express One Zone in the
            Amazon S3 User Guide.
            
General purpose buckets example bucket policies - See Bucket policy examples in the Amazon S3 User Guide.
Directory bucket example bucket policies - See Example bucket policies for S3 Express One Zone in the Amazon S3 User Guide.
Directory buckets  - The HTTP Host header syntax is s3express-control.region-code.amazonaws.com.
            
            The following action is related to GetBucketPolicy:
            
            You must URL encode any signed header values that contain spaces. For example, if
            your header value is my file.txt, containing two spaces after my, you
            must URL encode this value to my%20%20file.txt.
            
For .NET Core this operation is only available in asynchronous form. Please refer to GetBucketPolicyAsync.
Namespace: Amazon.S3
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z
public abstract GetBucketPolicyResponse GetBucketPolicy( String bucketName )
The bucket name to get the bucket policy for. Directory buckets - When you use this operation with a directory bucket, you must use path-style requests in the format https://s3express-control.region-code.amazonaws.com/bucket-name. Virtual-hosted-style requests aren't supported. Directory bucket names must be unique in the chosen Zone (Availability Zone or Local Zone). Bucket names must also 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 GuideAccess points - When you use this API operation with an access point, provide the alias of the access point in place of the bucket name. 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.
.NET Framework: 
Supported in: 4.5 and newer, 3.5