Design a Serverless Architecture System

Functional Requirements

1. User Authentication and Authorization

   • Users should be able to sign up, log in, and log out.
   • Role-based access control to restrict access to certain features.

2. Data Storage and Retrieval

   • Ability to store and retrieve user data efficiently.
   • Support for CRUD operations on data.

3. Scalability

   • The system should handle a large number of concurrent users.
   • Automatic scaling based on demand.

4. Event-Driven Processing

   • Trigger functions based on specific events (e.g., data changes, user actions).

5. API Gateway

   • Provide a RESTful API for client applications to interact with the system.

6. Monitoring and Logging

   • Real-time monitoring of system performance.
   • Logging of user activities and system events for auditing.

7. Data Backup and Recovery

   • Regular backups of data to prevent data loss.
   • Mechanisms for data recovery in case of failures.

8. Notification System

   • Send notifications to users based on specific triggers or events.

Non-Functional Requirements

1. Performance

   • Low latency for API responses.
   • Fast data retrieval and processing.

2. Reliability

   • High availability with minimal downtime.
   • Fault-tolerant architecture to handle failures gracefully.

3. Security

   • Secure data transmission and storage.
   • Protection against common vulnerabilities (e.g., SQL injection, XSS).

4. Cost Efficiency

   • Optimize for cost by leveraging serverless pay-per-use pricing models.

5. Scalability

   • Seamless scaling to accommodate varying loads without manual intervention.

6. Interoperability

   • Ability to integrate with third-party services and APIs.

7. Extensibility

   • Easy to add new features or modify existing ones without major overhauls.

8. Latency

   • Ensure minimal delay in processing and delivering responses to users.

9. Data Consistency

   • Ensure data consistency across distributed components and services.