Confused by auth.uid()? Learn how to correctly fetch the current user ID in Postgres functions, RLS policies, and Triggers. Deep dive into Security Definer.
A comprehensive deep dive into client-side storage. From Cookies to IndexedDB and the Cache API. We explore security best practices for JWT storage (XSS vs CSRF), performance implications of synchronous APIs, and how to build offline-first applications using Service Workers.
Once you ship a public API, you can't change it freely. Compare four versioning strategies for evolving APIs without breaking clients, plus analysis of real-world choices by GitHub, Stripe, and Twilio.
App crashes only in Release mode? It's likely ProGuard/R8. Learn how to debug obfuscated stack traces, use `@Keep` annotations, and analyze `usage.txt`.
Pringles can (Stack) vs Restaurant line (Queue). The most basic data structures, but without them, you can't understand recursion or message queues.
auth.uid() needs Context. It dies outside API calls.security definer to bypass permission blocks safely, but handle with care ("sudo" mode).auth.jwt() for high-performance role checks without joins.Supabase Auth is powerful, but it's not magic. It's pure, strict SQL living inside a stateless API world. Bridge the gap by programming defensively.