How to Rotate Claude API Keys with Secrets Manager and Lambda Without Getting Locked Out
Developers rush to rotate API keys for security, only to discover their AI‑powered apps suddenly start throwing 401 errors. The hidden culprit? A st…
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Beyond Stateless Lambda: Harnessing MicroVMs for Isolated AI Sandboxes
Here is the updated, complete blog post incorporating the AWS Console location and Terraform code specification as dedicated sections. Unlocking Nex…
I Gave My Agent a Deployment Tool. It Could Finally Answer.
My first CloudOps agent could not tell me whether production was healthy. That was the correct answer. It had a model and a system prompt, but it ha…
Cloud Resume Challenge Week 2 — Building the Serverless Backend with Lambda, DynamoDB & API Gateway
Chunk 2 is complete — and this was by far the most challenging and rewarding part of the challenge so far. In this post I'm documenting exactly how…
What to do in such situations: Developing an app integrated with generative AI
Hello, I’m pj-corridor, an engineer. In this article, I will introduce the challenges I faced while developing an application integrated with genera…
AWS Workshop – Day 1, Session 2
Workshop Name:Hands-on Workshop on Cloud-Native Systems & Applied AI Integration Organized by : Department of Computing, Coimbatore Institute of…
Stop hardcoding AWS Lambda layer ARNs: use public parameters for the AWS Parameters and Secrets Lambda Extension
To add the AWS Parameters and Secrets Lambda Extension to an AWS Lambda function, you can open the documentation, find the ARN table, locate your AW…
Claude Function Calling with API Gateway: Build a Secure Serverless LLM Endpoint
When Claude wants to run code, you need a webhook it can call. Most teams slam together a Lambda URL, but that skips critical security and versionin…
AWS Serverless Patterns and Anti-Patterns: What Works, What Breaks, and When to Use What
Serverless on AWS isn't "just use Lambda." It's a design philosophy: let AWS manage the infrastructure, pay only for what you use, and build with ma…
We Cut Lambda Cold Starts 56% — Three Wrong Turns Before the Real SnapStart Fix
CloudWise's /dashboard took up to 2.3 seconds to load cold. That's the API Lambda's own cliff — not network, not the frontend. AWS Lambda SnapStart…
Where exactly is the card in this photo? Image segmentation model inside a maxed-out lambda container
A crooked phone photo goes in, a clean straight card image comes out - no GPU, and nothing running when nobody uploads. It runs on the biggest lambd…
The reconnect storm that never touched the broker
There's a particular kind of 2 a.m. that only happens in fleet IoT. A slice of your devices — a few thousand of them — drop off the network at once.…
Integrating Lambda Durable Functions into a Step Functions Workflow
At re:Invent 2025, AWS announced Lambda Durable Functions . The feature introduces a checkpoint/replay mechanism that allows Lambda executions to ru…
"Error: Cannot find module 'aws-sdk'" on Lambda — migrating to @aws-sdk v3
If you upgraded a Lambda function from nodejs16.x to nodejs18.x (or nodejs20.x / nodejs22.x ) and your logs now show: Runtime.ImportModuleError: Err…
Building a worker-evaluator retry loop in LangGraph (and where it bites you on Lambda)
Most agent demos stop at "the model called a tool and gave an answer." That answer is often wrong, and nothing in the loop notices. I wanted an agen…
Serverless image pipeline with aws lambda+node+wasm: from 11.5mb to 91.2kb
A while back I needed to process thousands of images for an e-commerce platform: multiple versions per product, carousel, thumbnail, invoice miniatu…
I Built a Serverless VPN on Lambda MicroVMs — 12 Builds, 5 Dead Ends, 1 Working Architecture
TL;DR I built a personal VPN using AWS Lambda MicroVMs. Your traffic exits from AWS. When you disconnect, the MicroVM terminates — zero cost, nothin…
3- AWS Serverless: REST API vs. HTTP API
There is common point of confusion. what's the different between REST API vs. HTTP API in AWS and what's the different between them and a traditiona…
1- AWS Serverless: Designing a serverless API: Order Processing API (E-commerce)
Modern enterprise order processing architectures must decouple synchronous client demands from asynchronous backend dependencies. Here I'll detail a…
Triggering Lambda Durable Functions from SQS
Lambda durable functions, introduced in re:Invent 2025, are a great fit for long-running workflows that need to wait for external events, callbacks,…
Building a Production Serverless URL Shortener on AWS — 21 Articles, Every Test Run for Real
Most serverless tutorials stop at a hello-world Lambda behind API Gateway. I wanted the opposite: build one real product end to end, run every comma…
S3 Files Killed My Least Favorite Lambda Pattern
Every Lambda function I have written that touches S3 has the same three lines of plumbing: s3 . download_file ( bucket , key , " /tmp/input.csv " )…
Lambda Execution Roles Are Quietly Breaking Your Least Privilege Policy
Who This Is For If you are using AWS Lambda to build serverless applications and you have never stopped to look closely at the IAM roles attached to…
Building a Low-Cost Image Converter on AWS With Rust Lambda
Project demo link : https://image-ignite.vercel.app/ This started as a hobby project. I was thinking about a simple image conversion service for res…
The Truth About Serverless APIs Nobody Mentions
I've noticed serverless conversations tend to split into two camps: People who think it solves everything, and people who think it's a mistake. The…
Build your own daily notification bot on AWS Free Tier
A Lambda function checks the forecast, Bedrock tells you what to wear, and ntfy.sh pushes it to your phone before you get ready for the day, and it'…
Self-Hosted Vessel Email Alerts with AWS Lambda and SES
The thing you actually want is an email. Not a dashboard you have to remember to open. Not a webhook you have to write a server for. An email — the…