What is JWT Authentication Explained
Learn how JWT authentication works and how tokens are used to secure APIs.
🔐 What is JWT?
JWT (JSON Web Token) is a secure way to transmit information between client and server.
🧱 Structure
HEADER.PAYLOAD.SIGNATURE
📡 How It Works
- User logs in
- Server returns token
- Client sends token in requests
🛡️ Security Tips
- Never expose secret keys
- Use HTTPS
- Set expiration time
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