AWS Chatroom with DynamoDB, API Gateway, Lambda, S3, ACM, and Route53

A serverless chat application built using various AWS services demonstrating cloud architecture and infrastructure as code.

Architecture Diagram

Architecture Flowchart

Architecture

• Frontend: Static website hosted on S3
• Backend: Serverless architecture using AWS Lambda and API Gateway
• Database: DynamoDB
• DNS: Route 53

Prerequisites

• Python 3.8+
• AWS CLI configured with appropriate permissions
• Node.js 18+ (for Lambda functions)
• AWS account with access to:
  • DynamoDB
  • API Gateway
  • Lambda
  • S3
  • Route 53
  • ACM
  • Secrets Manager

Setup

1. Clone the repository:

git clone https://github.com/yourusername/chatroom-deployment.git
cd chatroom-deployment

2. Install Python dependencies:

pip install -r requirements.txt

3. Set up AWS Secrets:

python scripts/setup-secrets.py

4. Deploy the infrastructure:

python infrastructure/deploy.py

Project Structure

• src/static/: Contains the website files
• src/lambda/: Contains Lambda function code
• infrastructure/: Contains deployment scripts and API definitions
• scripts/: Contains utility scripts

Deployment

The deployment script will:

1. Create/update DynamoDB table
2. Deploy API Gateway using swagger definition
3. Set up S3 bucket for static website hosting
4. Upload static files
5. Configure DNS settings

Contributing

This project is part of CS399 F24. Please follow your instructor's guidelines for contributions and submissions.