This project is a microservices-based multi-vendor application designed to handle user management, product listing, transactions, and notifications. The architecture is scalable and uses modern cloud technologies.

1. User Service: Handles user registration, authentication, and profile management.
2. Product Service: Manages product creation, updates, deletion, and retrieval.
3. Transaction Service: Processes orders, payments, and transaction logs.
4. Notification Service: Sends notifications to users via email or other channels.

• Backend: Node.js, Express.js
• Cloud Technologies:
  • AWS CDK for infrastructure as code
  • Serverless Lambda for compute
  • SNS for notifications
  • CloudFront for content delivery
  • RDS for relational data storage
• Database: MongoDB, RDS
• Communication: REST APIs / RabbitMQ (for inter-service communication)
• Containerization: Docker
• Authentication: JWT / OAuth2

• Node.js installed
• MongoDB instance running
• AWS CLI configured for deployment
• Docker installed (optional for local containerization)

Each service is organized into its respective folder for ease of development and deployment:

1. User Service:

   cd services/user-service

2. Product Service:

   cd services/product-service

3. Transaction Service:

   cd services/transaction-service

4. Notification Service:

   cd services/notification-service

The architecture leverages a cloud-native approach with the following components:

1. AWS Lambda: Serverless functions for executing core service logic.
2. SNS: Manages notifications across the application.
3. RDS: Relational data storage for transactions and other structured data.
4. MongoDB: Non-relational database for dynamic content such as products.
5. CloudFront: Content delivery network for serving assets quickly.

Contributions are welcome! Please open an issue or submit a pull request.