About
The PAYUNi Webhook skill provides a comprehensive toolkit for developers building e-commerce solutions in Taiwan. It streamlines the creation of notification endpoints for the PAYUNi (統一金流) payment gateway, handling complex security requirements such as SHA256 CheckCode verification using constant-time comparisons, replay attack prevention, and database schema design for transaction logging. Whether using Next.js, Express, or NestJS, this skill ensures that payment status updates are handled reliably and securely within your application architecture.