🚀 Serverless IaC Deployment with Terraform (AWS Lambda + API Gateway + DynamoDB)

This project demonstrates how to build and deploy a fully serverless REST API on AWS using Infrastructure as Code (IaC) with Terraform. It covers compute, API, database, IAM roles, authentication, and CORS — all provisioned automatically.

🧩 Serverless Architecture

flowchart LR
    subgraph Frontend
      A[Amplify Web App]
    end

    subgraph Auth
      B[(Cognito User Pool)]
    end

    subgraph Backend
      C[API Gateway]
      D[Lambda Function]
    end

    subgraph Data
      E[(DynamoDB Table)]
    end

    subgraph Monitoring
      F[(CloudWatch Logs)]
    end

    A -->|Sign in| B
    B -->|JWT Token| C
    C -->|Invoke| D
    D -->|Read/Write| E
    D -->|Log| F

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⚙️ Technologies Used

Component	AWS Service	Description
Frontend	Amplify / S3	Static web hosting with HTTPS
Authentication	Cognito	OAuth2 / JWT user management
API	API Gateway (HTTP)	Public REST API with CORS and auth
Compute	Lambda (Python)	Stateless serverless compute
Database	DynamoDB	Serverless NoSQL table for users
Monitoring	CloudWatch Logs	Lambda logging and metrics
Infrastructure	Terraform	Infrastructure as Code (IaC) deployment