AzoozGAT Platform

AzoozGAT needed a production learning platform — quiz delivery, role-based access, and payment-gated cohorts — built from the ground up with a small team. The first cut carried real performance debt: a heavy first-load bundle, database reads multiplying under session traffic, and slow course and quiz pages that hurt engagement.

• Next.js App Router with server components for static-fast course pages, decoupling quiz content from real-time access checks
• Firebase Auth custom claims as the single source of truth for roles — enforced in middleware, API routes, and every Firestore security rule, so permissions never drift between layers
• Stripe Checkout with idempotent webhooks that update entitlements through Firestore transactions; replays never double-credit a user or strand them mid-flow
• Edge middleware enforces role-based route protection before handlers run — no database round-trip on the hot path
• Bundle work: tree-shook the quiz SDK, lazy-loaded the quiz player via next/dynamic, and split vendor dependencies into shared chunks
• Access tokens cached in custom claims and permission checks batched into a single query to cut per-session reads