Tag Archives: AWS Lambda

Backend for Frontend (BFF) on AWS — AppSync/GraphQL + Lambda Resolvers

By | December 31, 2025

What you’ll learn The problem BFF solves If multiple clients (web, mobile, partner apps) call the same “generic” backend, you often end up with: Backend for Frontend (BFF) fixes this by creating a backend tailored to a specific frontend: BFF in one sentence A BFF is a client-specific backend that aggregates and shapes data exactly… Read More »

CQRS on AWS Demystified: From Commands to Queries with Serverless Architecture

By | December 31, 2025

What you’ll learn Video discussion on YouTube – https://youtu.be/2lFW5H3ZzLA The problem CQRS solves In many systems, we try to make one database schema do everything: As the system grows, that single model starts to hurt: CQRS (Command Query Responsibility Segregation) is a pattern that says: CQRS in one sentence CQRS separates the write path (commands)… Read More »

Your AWS Lambda Deployments Can Suddenly Stop — Here’s the Quota Nobody Talks About

By | December 31, 2025

AWS Lambda is widely loved for its simplicity, auto-scaling, and frictionless deployments. You deploy code, AWS handles the scaling, and everything “just works”. Beneath that convenience lies a largely unknown and rarely discussed limit that can suddenly bring your entire CI/CD pipeline to a halt: If your Lambda-heavy compute has a lot of functions deployed… Read More »

Building Microservices on AWS: Lambda vs ECS Fargate

By | October 6, 2025

Selecting the right compute model is one of the biggest architectural decisions teams face on AWS. This guide contrasts serverless functions powered by AWS Lambda with containerized services running on Amazon ECS with Fargate. You’ll find side-by-side diagrams, architecture variants (including API Gateway front doors), and a comprehensive comparison of cost, performance, security, scaling, and… Read More »

Building a Scalable Serverless REST API with Lambda, API Gateway

By | September 22, 2025

This blog provides a comprehensive overview of one of the most popular serverless architectural patterns on AWS: a REST API powered by API Gateway, AWS Lambda, and DynamoDB. This pattern is ideal for building scalable, cost-effective CRUD (Create, Read, Update, Delete) APIs without managing any servers. 1. Architecture Overview The flow is designed for high… Read More »

Introduction to IaC using SAM and CloudFormation

By | March 25, 2023

AWS Serverless Application Model (SAM) is a framework for building serverless applications on AWS. SAM provides a simplified way of defining the Amazon API Gateway APIs, AWS Lambda functions, and Amazon DynamoDB tables needed by your serverless application. SAM also provides a command-line interface (CLI) for deploying and managing your serverless application on AWS. In… Read More »