Search for Visitation Lambda service errors

find_visitation_lambda_errors.py

#!/usr/bin/env python
import boto3

sf = boto3.client("stepfunctions")
failed = sf.list_executions(
    stateMachineArn="arn:aws:states:us-east-1:861229788715:stateMachine:dss-visitation-dev",
    statusFilter="FAILED",
)['executions']

def events(execution_arn):
    for page in sf.get_paginator("get_execution_history").paginate(executionArn=execution_arn):
        for e in page['events']:
            yield e

for ex in failed:  
    print(ex['startDate'], ex['executionArn'])
    for e in events(ex['executionArn']):
        try:
            print(e['timestamp'], e['lambdaFunctionFailedEventDetails'])
        except KeyError:
            continue
    print()