How to use get_lambda_logs method in localstack

Best Python code snippet using localstack_python

sns.py

Source:sns.py

...17        logger.info("extracting sns message ... DONE")18        message_namespace = message["Trigger"]["Namespace"]19        logger.debug(f"message_namespace={message_namespace}")20        if message_namespace == "AWS/Lambda":21            logger.debug("calling get_lambda_logs() ...")22            function_logs = get_lambda_logs(alarm_event=message)23            if function_logs:24                logs_text = "\n".join(function_logs)25            logger.debug("calling get_lambda_logs() ... DONE")26    except json.JSONDecodeError:27        logger.error("JSONDecodeError - unable to decode 'message' as JSON, returning raw message!")28        message = record["Sns"]["Message"]29        json_encoded_alarm = json.dumps(message, indent=4)30    return json_encoded_alarm, logs_text31def post_to_slack(event, context) -> List[int]:32    """Lambda handler for incoming SNS events.  SNS event 'Message' is posted to the configured SLACK_WEBHOOK_URL"""33    logger.debug(f"event={event}")34    logger.debug(f"context={context}")35    processed_record_status_codes = []36    if settings.ENABLE_POSTTOSLACK:37        logger.info(f"SLACK_WEBHOOK_URL={settings.SLACK_WEBHOOK_URL}")38        if "Records" in event:39            logger.debug(f"len(event['Records']={len(event['Records'])}")...

test_handlers_functions.py

Source:test_handlers_functions.py

...40            response = LOGS_CLIENT.put_log_events(logGroupName=self.log_group_name, logStreamName=self.log_stream_name, logEvents=events)41        except ClientError as e:42            if e.__class__.__name__ != "ResourceAlreadyExistsException":43                raise44    def test_get_lambda_logs(self):45        state_change_time = datetime.datetime.now(datetime.timezone.utc)46        alarm_event = {47            "AlarmName": "MyLambdaFunctionErrorsAlarm-stage",48            "AlarmDescription": "",49            "AWSAccountId": "xxx",50            "NewStateValue": "ALARM",51            "NewStateReason": "Threshold Crossed: 1 datapoint [1.0 (23/08/21 11:22:00)] was greater than or equal to the threshold (1.0).",52            "StateChangeTime": state_change_time.isoformat(),53            "Region": "Asia Pacific (Tokyo)",54            "AlarmArn": "arn:aws:cloudwatch:ap-northeast-1:xxx:alarm:MyLambdaFunctionErrorsAlarm-stage",55            "OldStateValue": "OK",56            "Trigger": {57                "MetricName": "Errors",58                "Namespace": "AWS/Lambda",59                "StatisticType": "Statistic",60                "Statistic": "MAXIMUM",61                "Unit": "",62                "Dimensions": [{"value": "LAMBDA-FUNCTION-NAME", "name": "FunctionName"}],63                "Period": 60,64                "EvaluationPeriods": 1,65                "ComparisonOperator": "GreaterThanOrEqualToThreshold",66                "Threshold": 1.0,67                "TreatMissingData": "- TreatMissingData: notBreaching",68                "EvaluateLowSampleCountPercentile": "",69            },70        }71        events = get_lambda_logs(alarm_event=alarm_event)...

util.py

Source:util.py

1import os2from localstack.utils.aws import aws_stack3def is_aws_cloud() -> bool:4    return os.environ.get("TEST_TARGET", "") == "AWS_CLOUD"5def get_lambda_logs(func_name, logs_client=None):6    logs_client = logs_client or aws_stack.create_external_boto_client("logs")7    log_group_name = f"/aws/lambda/{func_name}"8    streams = logs_client.describe_log_streams(logGroupName=log_group_name)["logStreams"]9    streams = sorted(streams, key=lambda x: x["creationTime"], reverse=True)10    log_events = logs_client.get_log_events(11        logGroupName=log_group_name, logStreamName=streams[0]["logStreamName"]12    )["events"]...

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