Stop Storing JWTs in LocalStorage | Production Auth in Node.js (Access + Refresh Tokens)
Most MERN stack tutorials teach insecure authentication patterns.
In this video, I break down how I built a *production-grade authentication system* using Node.js, Express, and MongoDB — the same patterns used in real-world systems.
🚨 The Problem:
Storing JWTs in LocalStorage makes applications vulnerable to XSS attacks.
✅ The Solution:
HttpOnly cookies + refresh token rotation.
🔑 Key Concepts Implemented:
🛡️ Dual-token architecture (short-lived access tokens + long-lived refresh tokens)
🔒 Refresh token hashing in the database (SHA-256)
🍪 HttpOnly cookies to mitigate XSS
👮 Role-based access control (Admin vs User) using middleware
🔄 Secure refresh token rotation & logout
This video includes:
• Code walkthrough
• Postman API demo
• Real bugs I encountered and fixed during implementation
💻 Source Code: https://github.com/Chaitanya-lohani-d...
👨💻 Portfolio: https://fullstack-website-k2fw.onrend...
#nodejs #backenddeveloper #websecurity #authentication #mernstack #jwt