Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

GetResourcePolicy

Retrieves the resource-based policy attached to a web function.

Request Syntax


GET /2025-03-07/resource-policy/resourceArn HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.

resourceArn

The Amazon Resource Name (ARN) of the web function.

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: arn:[^:]+:lambda:[^:]+:\d{12}:web-function/[^/]+

Required: Yes

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "Policy": "string",
   "RevisionId": "string"
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

Policy

The JSON-formatted resource-based policy attached to the web function.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 20480.

RevisionId

The revision ID of the policy.

Type: String

Pattern: [0-9a-f-]{36}

Errors

For information about the errors that are common to all actions, see Common Error Types.

AccessDeniedException

You don't have permission to perform this operation. Check the IAM policies for your identity and any resource-based policy on the web function.

message: A message describing the access denied error.

HTTP Status Code: 403

InternalServerException

The request failed because of an internal error in the service. Retry the request. If the error persists, open a support case.

message: A message describing the internal error.

HTTP Status Code: 500

ResourceNotFoundException

The specified web function, revision, endpoint, or resource-based policy doesn't exist. Verify the resource identifier and try again.

message: A message describing the resource not found error.
resourceId: The identifier of the resource that was not found.
resourceType: The type of the resource that was not found.

HTTP Status Code: 404

ThrottlingException

The request was denied because it exceeded the request rate that Lambda allows for your account. Reduce the frequency of requests and retry with exponential backoff.

message: A message describing the throttling error.
quotaCode: The quota code that was exceeded, if applicable.
retryAfterSeconds: The number of seconds to wait before retrying the request.
serviceCode: The service code of the throttled service.

HTTP Status Code: 429

ValidationException

The request failed validation because a parameter was missing, malformed, or outside the allowed range. Check the request parameters and try again.

message: A message describing the validation error.

HTTP Status Code: 400