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Building Serverless Microservices with AWS Lambda and API Gateway

Building Serverless Microservices with AWS Lambda and API Gateway

Discover how combining Amazon API Gateway and AWS Lambda enables you to build scalable, pay-as-you-go REST APIs without managing server infrastructure.

Introduction to Serverless APIs

Traditional web applications require continuous server monitoring, patching, and capacity planning. By adopting a serverless architecture, developers can run code on demand without provisioning or managing virtual machines.
The combination of Amazon API Gateway and AWS Lambda provides a fully managed back-end stack that automatically scales with incoming web traffic.

Key Components

  • Amazon API Gateway: Acts as the entry point (front door) for applications, handling HTTPS requests, routing, authorization, and rate limiting.
  • AWS Lambda: Executes business logic in response to API requests without running continuous background servers.Main Benefits
  1. Zero Infrastructure Overhead: AWS manages server provisioning, operating system maintenance, and security updates.
  2. Automatic Scaling: The setup scales seamlessly from a few requests per day to thousands per second.
  3. Cost Efficiency: You pay only for compute time consumed by Lambda execution and total requests processed by API Gateway.

Summary

Pairing API Gateway with AWS Lambda allows developers to focus entirely on writing application logic instead of managing infrastructure. This serverless pattern forms the foundation of modern, highly available cloud applications.
# aws-lambda# ai-for-bharat# ai-ml# agentic-ai# ai-agents
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