2025
Wallet Service
A secure, scalable digital wallet API with Paystack integration.
- NestJS
- TypeScript
- PostgreSQL
- Paystack
- Google OAuth
- JWT
- Developed a digital wallet API supporting user registration, JWT + Google OAuth authentication, and full transaction management (deposits, withdrawals, transfers).
- Integrated Paystack for payments processing and TypeORM for PostgreSQL schema management and migrations.
- Implemented security best practices including bcrypt password hashing, SQL injection prevention, and HTTPS enforcement.