How to Fix the “secretOrPrivateKey Must Have a Value” Error in JWT (jsonwebtoken)
Learn how to fix the “secretOrPrivateKey must have a value” error in jsonwebtoken (JWT). Discover why process.env becomes undefined, how to properly configure dotenv, and avoid common Node.js authentication mistakes.. You’re building authentication for your Node.js application, everything looks correct, and then your server crashes with: It’s one of the most common JWT-related errors developers … Read more
