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3+ curated questions with the same answer shape every time: quick recap, deep dive, pitfalls, and follow-ups. Coverage includes devise basics, sessions and cookies, token auth intro.
Suggested path
Topics follow a teaching order. Each answer ends with a clear Next question control so you can move forward without hunting the list.
Rails authentication questions test whether a junior developer can explain identity across requests without confusing the available mechanisms. This module traces Devise through Warden and Rails sessions, separates plain, signed, encrypted, and session cookies, and compares opaque and signed bearer tokens without claiming token authentication is automatically stateless. Security boundaries—authorization, CSRF, token storage, expiry, and revocation—remain explicit in every answer.
Full catalog
Topics are ordered for learning. Within each topic, rows are numbered 1–3 globally so you always know where you are. Collapse topics if you want a lighter view — use Expand all when you need the full list again.
Numbers 1–3 follow the order we recommend — click any row to open the full answer, or use the sticky Next link at the bottom of each page to go Q1 → Q3.