System Design for the Scenario

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Design a system for handling user authentication and authorization in a web application.

Use OAuth for authentication to allow users to log in using their existing accounts from providers like Google, Facebook, etc.
Implement role-based access control (RBAC) for authorization to define different levels of access for different users.
Store user credentials securely using hashing algorithms like bcrypt.
Use JSON Web Tokens (JWT) for session management to securely transmit information between parties.
Implement multi-factor authentication (MFA) for an added layer of security.
Regularly audit and monitor user activity to detect any suspicious behavior.
Consider implementing rate limiting to prevent brute force attacks on login endpoints.

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