Flask Auth & Security

Protecting user data and restricting access to critical endpoints.

Session-based Auth (Flask-Login)

• The UserMixin: Simplified implementation of login/logout states.
• decorators: @login_required to protect views.

Token-based Auth (JWT)

Use Flask-JWT-Extended for stateless APIs.

• Claims: Storing user identity and roles in the token.
• Refresh Tokens: Managing long-term sessions securely.

General Security

• Hashing: Use pbkdf2:sha256 or bcrypt for storage.
• Headers: Implement HSTS, Content-Security-Policy, and common security headers (using Flask-Talisman).
• Secrets: Never commit SECRET_KEY to version control.