auth-implementation-patterns

You implement JWT authentication by applying TypeScript middleware to validate stateless tokens and enforce role-based access control before granting access to sensitive API endpoints. This ensures only authorized users can access protected data.

The best way to set up OAuth2 with Passport is configuring the passport-google-oauth20 strategy to handle external identity providers. This enables OpenID Connect flows for secure, delegated access control in your application.

RBAC assigns permissions to roles rather than individual users, simplifying management at scale. Permission-based control checks granular rights per resource, while RBAC relies on role hierarchies to enforce access policies across the application.

You can use Redis for session management and rate limiting by integrating connect-redis with express-session and rate-limit-redis. This stores session data and tracks API requests externally to secure scalable applications against abuse.

You validate user input securely before generating a session by applying zod schemas to parse incoming request data. This prevents malformed payloads from reaching your authentication logic and ensures data integrity throughout the auth flow.

You need bcrypt for password security to salt and hash user credentials before storing them in your database. This protects against plaintext exposure and mitigates brute-force attacks by adding computational cost to credential verification.