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

CheckNoNewAccess

Checks whether new access is allowed for an updated policy when compared to the existing policy.

You can find examples for reference policies and learn how to set up and run a custom policy check for new access in the IAM Access Analyzer custom policy checks samples repository on GitHub. The reference policies in this repository are meant to be passed to the existingPolicyDocument request parameter.

Request Syntax


POST /policy/check-no-new-access HTTP/1.1
Content-type: application/json

{
   "existingPolicyDocument": "string",
   "newPolicyDocument": "string",
   "policyType": "string"
}

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request accepts the following data in JSON format.

existingPolicyDocument

The JSON policy document to use as the content for the existing policy.

Type: String

Required: Yes

newPolicyDocument

The JSON policy document to use as the content for the updated policy.

Type: String

Required: Yes

policyType

The type of policy to compare. Identity policies grant permissions to IAM principals. Identity policies include managed and inline policies for IAM roles, users, and groups.

Resource policies grant permissions on AWS resources. Resource policies include trust policies for IAM roles and bucket policies for Amazon S3 buckets. You can provide a generic input such as identity policy or resource policy or a specific input such as managed policy or Amazon S3 bucket policy.

Type: String

Valid Values: IDENTITY_POLICY | RESOURCE_POLICY

Required: Yes

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "message": "string",
   "reasons": [ 
      { 
         "description": "string",
         "statementId": "string",
         "statementIndex": number
      }
   ],
   "result": "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.

message

The message indicating whether the updated policy allows new access.

Type: String

reasons

A description of the reasoning of the result.

Type: Array of ReasonSummary objects

result

The result of the check for new access. If the result is PASS, no new access is allowed by the updated policy. If the result is FAIL, the updated policy might allow new access.

Type: String

Valid Values: PASS | FAIL

Errors

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

AccessDeniedException

You do not have sufficient access to perform this action.

HTTP Status Code: 403

InternalServerException

Internal server error.

HTTP Status Code: 500

InvalidParameterException

The specified parameter is invalid.

HTTP Status Code: 400

ThrottlingException

Throttling limit exceeded error.

HTTP Status Code: 429

UnprocessableEntityException

The specified entity could not be processed.

HTTP Status Code: 422

ValidationException

Validation exception error.

HTTP Status Code: 400