AuthX
Working
A complete MERN stack authentication system with secure user registration, login, email verification, and password reset functionality.
Key Features
- Secure JWT Authentication: Handled user login and protected API routes using stateless JSON Web Tokens.
- Automated Email Flows: Integrated Nodemailer with Mailtrap for sending account verification and password reset emails.
- Password Cryptography: Ensured database security by salting and hashing user credentials with Bcrypt before saving to MongoDB.
- Modular Architecture: Structured the backend cleanly with separate controllers, routes, and custom middleware for scalability.
Challenges Faced
- Stateless Security: Figuring out the safest way to issue and validate tokens without exposing the application to common security vulnerabilities.
- Reliable Email Testing: Initially struggled with local email delivery getting blocked, which I solved by configuring Mailtrap to catch and test outgoing messages securely.
Key Learnings
- Token Lifecycles: Deepened my understanding of how JWTs are signed, verified, and used to maintain stateless user sessions.
- SMTP Integration: Learned how to configure Node.js to communicate with external email servers for transactional emails.
- Middleware Logic: Mastered writing custom Express middleware to intercept requests and verify authentication status efficiently.