Security control system for OAuth 2.0 and OpenID Connect social login. Enforces discovery, strict security invariants, and deterministic outputs before any code is written. Covers OAuth login, provider integration, auth code plus PKCE flow, token and session handling, account linking, multi provider auth, and framework adapters (Next.js, Express, Node). Triggers on login flows, callbacks, token exchange, refresh, cookies, and adapter setup.
Implement Paystack payment processing for Nigerian and African markets. Use when integrating one-time payments (initialize, redirect/popup, verify), subscriptions/recurring billing (plans, customers, subscriptions), or webhook handling. Covers Next.js and Express implementations with TypeScript. Triggers: payment integration, Paystack setup, accept payments Nigeria, NGN payments, subscription billing, payment webhooks, Paystack API, kobo conversion.
Implement Flutterwave payment processing for African markets (34+ countries). Use when integrating one-time payments (card, bank transfer, USSD, mobile money), subscriptions/recurring billing, or webhook handling. Covers Next.js and Express implementations with TypeScript. Triggers: payment integration, Flutterwave setup, accept payments Africa, NGN/GHS/KES/ZAR payments, mobile money, M-Pesa, MTN, subscription billing, payment webhooks, Flutterwave API, tx_ref, verif-hash.