🔑JWT & Auth
Secure Session Structure
Generating and validating random session identifiers.
Explanation
Session IDs link a browser request to a server-side session store without exposing user data.
Examples
Session ID
Output
sess_9a2b8c...
Code Examples
JavaScript
const sessionId = crypto.randomBytes(32).toString('hex');
// Result: 64-character random hex string💡 Tips
- Session IDs must be cryptographically random
- Invalidate sessions on logout and after long periods of inactivity
- Store in HttpOnly cookies to prevent theft via XSS
⚠️ Common Pitfalls
- Predictable session IDs allow session hijacking