Dynamodb batch_execute_statement not supported

When running a batch_execute_statement, the following exception occurs:

AttributeError: 'DynamoHandler' object has no attribute 'batch_execute_statement'

Here is the complete trace:

>       result = app.lambda_handler(event, '')

tests/unit/test_merge_decode_results.py:51:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
src/decode_video_state_machine/merge_results/app.py:70: in lambda_handler
    results = get_data_from_secrets(secrets)
src/decode_video_state_machine/merge_results/app.py:52: in get_data_from_secrets
    results = dynamodb.batch_execute_statement(
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/client.py:357: in _api_call
    return self._make_api_call(operation_name, kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/client.py:662: in _make_api_call
    http, parsed_response = self._make_request(
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/client.py:682: in _make_request
    return self._endpoint.make_request(operation_model, request_dict)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/endpoint.py:102: in make_request
    return self._send_request(request_dict, operation_model)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/endpoint.py:136: in _send_request
    while self._needs_retry(attempts, operation_model, request_dict,
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/endpoint.py:253: in _needs_retry
    responses = self._event_emitter.emit(
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/hooks.py:356: in emit
    return self._emitter.emit(aliased_event_name, **kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/hooks.py:228: in emit
    return self._emit(event_name, kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/hooks.py:211: in _emit
    response = handler(**kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/retryhandler.py:183: in __call__
    if self._checker(attempts, response, caught_exception):
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/retryhandler.py:250: in __call__
    should_retry = self._should_retry(attempt_number, response,
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/retryhandler.py:269: in _should_retry
    return self._checker(attempt_number, response, caught_exception)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/retryhandler.py:316: in __call__
    checker_response = checker(attempt_number, response,
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/retryhandler.py:222: in __call__
    return self._check_caught_exception(
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/retryhandler.py:359: in _check_caught_exception
    raise caught_exception
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/endpoint.py:197: in _do_get_response
    responses = self._event_emitter.emit(event_name, request=request)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/hooks.py:356: in emit
    return self._emitter.emit(aliased_event_name, **kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/hooks.py:228: in emit
    return self._emit(event_name, kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/botocore/hooks.py:211: in _emit
    response = handler(**kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/moto/core/models.py:322: in __call__
    status, headers, body = response_callback(
../../API-my-copy/API/venv/lib/python3.9/site-packages/moto/core/responses.py:202: in dispatch
    return cls()._dispatch(*args, **kwargs)
../../API-my-copy/API/venv/lib/python3.9/site-packages/moto/core/responses.py:312: in _dispatch
    return self.call_action()
../../API-my-copy/API/venv/lib/python3.9/site-packages/moto/core/utils.py:277: in _wrapper
    response = f(*args, **kwargs)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <moto.dynamodb2.responses.DynamoHandler object at 0x1143d9d30>

    @amzn_request_id
    def call_action(self):
        self.body = json.loads(self.body or "{}")
        endpoint = self.get_endpoint_name(self.headers)
        if endpoint:
            endpoint = camelcase_to_underscores(endpoint)
>           response = getattr(self, endpoint)()
E           AttributeError: 'DynamoHandler' object has no attribute 'batch_execute_statement'

../../API-my-copy/API/venv/lib/python3.9/site-packages/moto/dynamodb2/responses.py:86: AttributeError

The code I’m running looks something like this:

import boto3

dynamodb = boto3.client('dynamodb')

statements = ... # leaving this out because I believe it is irrelevant

results = dynamodb.batch_execute_statement(
    Statements=statements
)

The reason I raise this as an issue is because the readme for the project states that “all endpoints” are supported for DynamoDB2, which led me to believe that batch_execute_statement would be supported. I just wanted to check that this is indeed not supported, and so it is expected behavior.

[bblommers]

Hi @evanhackett, thanks for raising this. Correct, this is not yet supported - looks like the README is wrong. We’ll update that soon. Will mark it as an enhancement to also implement this feature.

FWIW, there is a more up-to-date (and hopefully more accurate…) list of implemented endpoints here: https://github.com/spulec/moto/blob/master/IMPLEMENTATION_COVERAGE.md#dynamodb

[ronkorving]

@bblommers I’m avoiding using it altogether right now, so can’t provide an example query 😅 But appreciate you sharing the issue! I searched for select_object_content in the issue tracker and didn’t find anything, but it seems my search wasn’t broad enough. I’m thrilled to see interest in the matter. I’ll stop distracting from this DynamoDB issue now 🙇