AWS Lake Formation : grant_permissions : Unknown parameter in Resource.Table: “TableWildcard”

Question

Trying to grant lake permissions via a Lambda Function. (Python 3.8) As far as I can see, I have my code as per documentation. Yet hitting a barrage of nonsense errors about parameters being incorrect. Could it be that I just need an optician ? Or is it some nuance or which way the Amazon wind blows today ?

import boto3
import json
from botocore.exceptions import ClientError

def main(event,context):

    client = boto3.client('lakeformation')

    response = client.grant_permissions(
        Principal={
            'DataLakePrincipalIdentifier': 'arn:aws:iam::123456789012:role/myRole'
        },
        Resource={
            'Table': {
                'DatabaseName': 'myDatabase',
                'TableWildcard': {}
            },
        },
        Permissions=['ALL'],
        PermissionsWithGrantOption=['ALL']
    )

======================================================================================

[ERROR] ParamValidationError: Parameter validation failed: Missing required parameter in Resource.Table: "Name" Unknown parameter in Resource.Table: "TableWildcard", must be one of: DatabaseName, Name Traceback (most recent call last): File "/var/task/main.py", line 10, in main response = client.grant_permissions( File "/var/runtime/botocore/client.py", line 316, in _api_call return self._make_api_call(operation_name, kwargs) File "/var/runtime/botocore/client.py", line 607, in _make_api_call request_dict = self._convert_to_request_dict( File "/var/runtime/botocore/client.py", line 655, in _convert_to_request_dict request_dict = self._serializer.serialize_to_request( File "/var/runtime/botocore/validate.py", line 297, in serialize_to_request raise ParamValidationError(report=report.generate_report())

It seems to be a lambda issue. I have the same error on lambda. But it works on local workstation. — Marcin

Marcin Marcin · Accepted Answer · 2020-08-06T09:21:16

I investigated the issue a bit. And the error is because on lambda, the definition of TableResoures is (note the missing TableWildcard on lambda):

    "TableResource":{
      "type":"structure",
      "required":[
        "DatabaseName",
        "Name"
      ],
      "members":{
        "DatabaseName":{
          "shape":"NameString",
          "documentation":"<p>The name of the database for the table. Unique to a Data Catalog. A database is a set of associated table definitions organized into a logical group. You can Grant and Revoke database privileges to a principal. </p>"
        },
        "Name":{
          "shape":"NameString",
          "documentation":"<p>The name of the table.</p>"
        }
      },
      "documentation":"<p>A structure for the table object. A table is a metadata definition that represents your data. You can Grant and Revoke table privileges to a principal. </p>"
    }

In contrast, the latest version on github has:

    "TableResource":{
      "type":"structure",
      "required":["DatabaseName"],
      "members":{
        "CatalogId":{
          "shape":"CatalogIdString",
          "documentation":"<p>The identifier for the Data Catalog. By default, it is the account ID of the caller.</p>"
        },
        "DatabaseName":{
          "shape":"NameString",
          "documentation":"<p>The name of the database for the table. Unique to a Data Catalog. A database is a set of associated table definitions organized into a logical group. You can Grant and Revoke database privileges to a principal. </p>"
        },
        "Name":{
          "shape":"NameString",
          "documentation":"<p>The name of the table.</p>"
        },
        "TableWildcard":{
          "shape":"TableWildcard",
          "documentation":"<p>A wildcard object representing every table under a database.</p> <p>At least one of <code>TableResource$Name</code> or <code>TableResource$TableWildcard</code> is required.</p>"
        }
      }

Seems to me that this is some bug.

AWS Lake Formation : grant_permissions : Unknown parameter in Resource.Table: “TableWildcard”

1 Answers