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How to use receive_dlq method in localstack

Best Python code snippet using localstack_python

test_sns.py

Source:test_sns.py

...351        payload = {352            lambda_integration.MSG_BODY_RAISE_ERROR_FLAG: 1,353        }354        self.sns_client.publish(TopicArn=topic_arn, Message=json.dumps(payload))355        def receive_dlq():356            result = self.sqs_client.receive_message(QueueUrl=queue_url, MessageAttributeNames=['All'])357            msg_attrs = result['Messages'][0]['MessageAttributes']358            self.assertGreater(len(result['Messages']), 0)359            self.assertIn('RequestID', msg_attrs)360            self.assertIn('ErrorCode', msg_attrs)361            self.assertIn('ErrorMessage', msg_attrs)362        retry(receive_dlq, retries=8, sleep=2)363    def unsubscribe_all_from_sns(self):364        for subscription_arn in self.sns_client.list_subscriptions()['Subscriptions']:365            self.sns_client.unsubscribe(SubscriptionArn=subscription_arn['SubscriptionArn'])366    def test_redrive_policy_http_subscription(self):367        self.unsubscribe_all_from_sns()368        # create HTTP endpoint and connect it to SNS topic369        class MyUpdateListener(ProxyListener):370            def forward_request(self, method, path, data, headers):371                records.append((json.loads(to_str(data)), headers))372                return 200373        records = []374        local_port = get_free_tcp_port()375        proxy = start_proxy(local_port, backend_url=None, update_listener=MyUpdateListener())376        wait_for_port_open(local_port)377        http_endpoint = '%s://localhost:%s' % (get_service_protocol(), local_port)378        subscription = self.sns_client.subscribe(TopicArn=self.topic_arn,379            Protocol='http', Endpoint=http_endpoint)380        self.sns_client.set_subscription_attributes(381            SubscriptionArn=subscription['SubscriptionArn'],382            AttributeName='RedrivePolicy',383            AttributeValue=json.dumps({'deadLetterTargetArn': aws_stack.sqs_queue_arn(TEST_QUEUE_DLQ_NAME)})384        )385        proxy.stop()386        # for some reason, it takes a long time to stop the proxy thread -> TODO investigate387        time.sleep(5)388        self.sns_client.publish(TopicArn=self.topic_arn, Message=json.dumps({'message': 'test_redrive_policy'}))389        def receive_dlq():390            result = self.sqs_client.receive_message(QueueUrl=self.dlq_url, MessageAttributeNames=['All'])391            self.assertGreater(len(result['Messages']), 0)392            self.assertEqual(393                json.loads(json.loads(result['Messages'][0]['Body'])['Message'][0])['message'],394                'test_redrive_policy'395            )396        retry(receive_dlq, retries=7, sleep=2.5)397    def test_redrive_policy_lambda_subscription(self):398        self.unsubscribe_all_from_sns()399        lambda_name = 'test-%s' % short_uid()400        lambda_arn = aws_stack.lambda_function_arn(lambda_name)401        testutil.create_lambda_function(func_name=lambda_name, libs=TEST_LAMBDA_LIBS,402            handler_file=TEST_LAMBDA_PYTHON, runtime=LAMBDA_RUNTIME_PYTHON36)403        subscription = self.sns_client.subscribe(TopicArn=self.topic_arn, Protocol='lambda', Endpoint=lambda_arn)404        self.sns_client.set_subscription_attributes(405            SubscriptionArn=subscription['SubscriptionArn'],406            AttributeName='RedrivePolicy',407            AttributeValue=json.dumps({'deadLetterTargetArn': aws_stack.sqs_queue_arn(TEST_QUEUE_DLQ_NAME)})408        )409        testutil.delete_lambda_function(lambda_name)410        self.sns_client.publish(TopicArn=self.topic_arn, Message=json.dumps({'message': 'test_redrive_policy'}))411        def receive_dlq():412            result = self.sqs_client.receive_message(QueueUrl=self.dlq_url, MessageAttributeNames=['All'])413            self.assertGreater(len(result['Messages']), 0)414            self.assertEqual(415                json.loads(json.loads(result['Messages'][0]['Body'])['Message'][0])['message'],416                'test_redrive_policy'417            )418        retry(receive_dlq, retries=10, sleep=2)419    def test_redrive_policy_queue_subscription(self):420        self.unsubscribe_all_from_sns()421        topic_arn = self.sns_client.create_topic(Name='topic-%s' % short_uid())['TopicArn']422        invalid_queue_arn = aws_stack.sqs_queue_arn('invalid_queue')423        # subscribe with an invalid queue ARN, to trigger event on DLQ below424        subscription = self.sns_client.subscribe(TopicArn=topic_arn, Protocol='sqs', Endpoint=invalid_queue_arn)425        self.sns_client.set_subscription_attributes(426            SubscriptionArn=subscription['SubscriptionArn'],427            AttributeName='RedrivePolicy',428            AttributeValue=json.dumps({'deadLetterTargetArn': aws_stack.sqs_queue_arn(TEST_QUEUE_DLQ_NAME)})429        )430        self.sns_client.publish(TopicArn=topic_arn, Message=json.dumps({'message': 'test_redrive_policy'}))431        def receive_dlq():432            result = self.sqs_client.receive_message(QueueUrl=self.dlq_url, MessageAttributeNames=['All'])433            self.assertGreater(len(result['Messages']), 0)434            self.assertEqual(435                json.loads(json.loads(result['Messages'][0]['Body'])['Message'][0])['message'],436                'test_redrive_policy'437            )438        retry(receive_dlq, retries=10, sleep=2)439    def test_publish_with_empty_subject(self):440        topic_arn = self.sns_client.create_topic(Name=TEST_TOPIC_NAME_2)['TopicArn']441        # Publish without subject442        rs = self.sns_client.publish(443            TopicArn=topic_arn,444            Message=json.dumps({'message': 'test_publish'})445        )...

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