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Building scalable web applications with React and AWS Serverless architecture

Learn how to architecture and deploy a modern full-stack web application using React on the frontend and AWS Lambda, API Gateway, and DynamoDB on the backend.

Introduction

Building modern web applications requires a setup that is responsive, scalable, and cost-efficient. By combining a React frontend with an AWS Serverless backend (API Gateway, Lambda, and DynamoDB), developers can deploy scalable full-stack applications without the overhead of managing servers or infrastructure.
In this article, we will explore the core concepts and steps needed to build and integrate a full-stack application using React and AWS Serverless services.

High-Level Architecture

The architecture consists of three core components:
  1. Frontend (React): Hosted on Amazon S3 and distributed globally via Amazon CloudFront for fast content delivery.
  2. API Layer (Amazon API Gateway): Acts as the entry point for frontend HTTP requests and routes them to backend functions.
  3. Backend & Database (AWS Lambda & Amazon DynamoDB):
    • AWS Lambda executes serverless logic on demand.
    • Amazon DynamoDB provides scalable, low-latency NoSQL data storage.

Step 1: Setting Up the React Frontend

Start by creating a clean React application:
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npx create-react-app fullstack-aws-app
cd fullstack-aws-app
npm start
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