Authentication is the backbone of any secure web app. After building several projects using Express.js, I’ve settled on a simple but flexible approach that balances security, scalability, and ease of use.
In this post, I’ll walk through how I handle authentication on the backend using Express, including how I:
- Register and log in users
- Secure passwords
- Generate and verify tokens
- Protect routes
🌍 Why I Like This Setup
Stateless – Everything is handled with tokens, so no session storage unless I explicitly want them.
Scalable – Works well across multiple clients (web, mobile).
Secure – Passwords are hashed, and JWTs are signed and time-limited.
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