Phase 8 · Authentication Across the Stack
TopicsProtected Routes (Backend)
Part of the Full Stack Developer Roadmap.
Summary
The real security boundary — middleware that verifies a valid token/session before allowing a request to reach a protected endpoint's logic.
How to Learn This
- 1Build auth middleware that rejects requests without a valid token.
- 2Apply it to every route that should require login, not just the ones the frontend currently guards.
- 3Test protected endpoints directly, via Postman, without going through the frontend, to confirm they're actually enforced.
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