AWS Lambda S3 Trigger Python: 3 Mistakes That Cost Us Data
We ran an AWS Lambda S3 trigger with Python in production and got burned — duplicate records, silent failures, and a timeout misconfiguration that multiplied our costs.
AWS Lambda S3 Trigger Python: 3 Production Mistakes We Fixed
We lost 6 hours of vendor data because our AWS Lambda S3 trigger Python function swallowed a KeyError silently. Here's every mistake and the exact fix.
AWS Step Functions Lambda S3: 3 Production Mistakes We Made
We wired Step Functions into our Lambda S3 pipeline and hit silent timeouts, payload crashes, and a wildcard IAM role we ignored for months. Here's what we got wrong.
AWS Lambda Function that will create 7zip archive from the files in S3 Bucket (S3 Event as a trigger)
An event-driven AWS Lambda pattern that builds index.7z from S3 folder objects and uploads the archive back to the same prefix.
AWS Lambda function that will create 7zip archive index.7z in S3 bucket
A Lambda + S3 workflow for generating index.7z in gid-* folders with explicit preconditions, regex-based filtering, and manual JSON input control.
AWS Lambda that Uses EventBridge Rule for getting Events and delete Tag files from S3
EventBridge-driven Lambda remediation flow that replaces flagged S3 objects, removes tags, and notifies SNS with incident context.
AWS Lambda Dead-Letter Queues with SQS: Capture and Replay Failed Async Events
Silent Lambda failures on async invocations discard event payloads permanently unless you have a safety net in place. This post walks through wiring an SQS dead-letter queue to a Lambda function and building a controlled replay script to recover those lost events.
boto3 EC2 inventory script with argparse profiles and structured logging
A Python CLI that lists running EC2 instances across regions using boto3 sessions, argparse, and paginators, with a fix for the NoRegionError that bit me mid-refactor.
AWS Lambda + Python: Handle S3 Events and Errors Like a Pro
Learn how to trigger an AWS Lambda function from S3 uploads using Python, with real error handling that won't leave you guessing at 2am.
AWS Lambda for parsing ALB logs stored in S3 after CloudWatch Alert triggered
This article documents a Lambda-based ALB log parsing workflow triggered by CloudWatch alerts, focused on actionable parsing and operational visibility.
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