S3 / Client / get_bucket_policy

get_bucket_policy#

S3.Client.get_bucket_policy(**kwargs)#

Returns the policy of a specified bucket. 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 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.

Warning

As a security precaution, the root user of the Amazon Web Services account that owns a bucket can always use this operation, even if the policy explicitly denies the root user the ability to perform this action.

To use this API against an access point, provide the alias of the access point in place of the bucket name.

For more information about bucket policies, see Using Bucket Policies and User Policies.

The following action is related to GetBucketPolicy:

See also: AWS API Documentation

Request Syntax

response = client.get_bucket_policy(
    Bucket='string',
    ExpectedBucketOwner='string'
)
Parameters:

  • Bucket (string) –

    [REQUIRED]

    The bucket name for which to get the bucket policy.

  • ExpectedBucketOwner (string) – The account ID of the expected bucket owner. If the bucket is owned by a different account, the request fails with the HTTP status code 403 Forbidden (access denied).

Return type:

dict

Returns:

Response Syntax

{
    'Policy': 'string'
}

Response Structure

  • (dict) –

    • Policy (string) –

      The bucket policy as a JSON document.

Examples

The following example returns bucket policy associated with a bucket.

response = client.get_bucket_policy(
    Bucket='examplebucket',
)

print(response)

Expected Output:

{
    'Policy': '{"Version":"2008-10-17","Id":"LogPolicy","Statement":[{"Sid":"Enables the log delivery group to publish logs to your bucket ","Effect":"Allow","Principal":{"AWS":"111122223333"},"Action":["s3:GetBucketAcl","s3:GetObjectAcl","s3:PutObject"],"Resource":["arn:aws:s3:::policytest1/*","arn:aws:s3:::policytest1"]}]}',
    'ResponseMetadata': {
        '...': '...',
    },
}