AWS Lambda

2026/08/20 - AWS Lambda - 3 new api methods

Changes  Adds support for full JSON resource-based policies, enabling customers to create, retrieve, update, and delete function resource policies as complete JSON documents.

GetResourcePolicy (new) Link ¶

Retrieves the resource-based policy attached to a Lambda resource.

See also: AWS API Documentation

Request Syntax

client.get_resource_policy(
    ResourceArn='string'
)
type ResourceArn:

string

param ResourceArn:

[REQUIRED]

The Amazon Resource Name (ARN) of the Lambda resource you want to retrieve the policy for. You can use a qualified or an unqualified ARN. The value must be a complete ARN, and the operation does not accept wildcard characters.

rtype:

dict

returns:

Response Syntax

{
    'Policy': 'string',
    'RevisionId': 'string'
}

Response Structure

  • (dict) --

    • Policy (string) --

      The resource-based policy attached to the Lambda resource you specified.

    • RevisionId (string) --

      The revision ID of the policy. Pass this value as the RevisionId in a PutResourcePolicy or DeleteResourcePolicy request. Doing so ensures the operation acts on the expected version of the policy.

DeleteResourcePolicy (new) Link ¶

Deletes a resource-based policy from a Lambda resource.

See also: AWS API Documentation

Request Syntax

client.delete_resource_policy(
    ResourceArn='string',
    RevisionId='string'
)
type ResourceArn:

string

param ResourceArn:

[REQUIRED]

The Amazon Resource Name (ARN) of the Lambda resource you want to delete the policy from. You can use a qualified or an unqualified ARN. The value must be a complete ARN, and the operation does not accept wildcard characters.

type RevisionId:

string

param RevisionId:

The revision ID that the existing policy must match for the deletion to proceed. If the revision ID doesn't match, the operation fails with a PreconditionFailedException error. To retrieve the current revision ID, use the GetResourcePolicy operation.

returns:

None

PutResourcePolicy (new) Link ¶

Adds a resource-based policy to a Lambda resource. Resource-based policies grant access to other Amazon Web Services accounts, organizations, or services. Resource-based policies apply to a single Lambda resource (for example, a function, function version, or function alias).

See also: AWS API Documentation

Request Syntax

client.put_resource_policy(
    ResourceArn='string',
    Policy='string',
    RevisionId='string'
)
type ResourceArn:

string

param ResourceArn:

[REQUIRED]

The Amazon Resource Name (ARN) of the Lambda resource you want to add the policy to. You can use a qualified or an unqualified ARN. The value must be a complete ARN, and the operation does not accept wildcard characters.

type Policy:

string

param Policy:

[REQUIRED]

The policy document you want to add to your Lambda resource. This is formatted as a JSON string.

For more information, see Working with resource-based policies in Lambda in the Lambda Developer Guide.

type RevisionId:

string

param RevisionId:

The revision ID that the existing policy must match for the replacement to proceed. If the revision ID doesn't match, the operation fails with a PreconditionFailedException error. To retrieve the current revision ID, use the GetResourcePolicy operation.

rtype:

dict

returns:

Response Syntax

{
    'Policy': 'string',
    'RevisionId': 'string'
}

Response Structure

  • (dict) --

    • Policy (string) --

      The resource-based policy that Lambda adds to the resource.

    • RevisionId (string) --

      The revision ID of the policy that Lambda adds to your Lambda resource.