Which web frameworks are supported?

The skill provides templates and logic for Next.js (App and Pages Router), Express, NestJS, and other Node.js-based environments.

What is the PAYUNi Webhook skill?

It is a specialized capability for Claude Code that helps developers implement payment notification endpoints for the PAYUNi (統一金流) gateway in Taiwan.

How does it ensure payment security?

It implements mandatory SHA256 signature verification (CheckCode), uses constant-time comparison to prevent timing attacks, and suggests database patterns to block replay attacks.

Does it handle different payment statuses?

Yes, it includes logic branches for handling both successful payments and failed transactions, allowing for automatic order status updates.

PAYUNi Webhook Integration

Name: PAYUNi Webhook Integration
Author: paid-tw

bypaid-tw

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171

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E-commerce Solutions

Automates the implementation of secure PAYUNi payment webhooks with signature verification and order status synchronization.

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.

Key Features

01Generates framework-specific webhook endpoints (Next.js App/Pages Router, Express)

02Prevents replay attacks with built-in transaction logging patterns

03Implements secure SHA256 CheckCode signature verification

04Uses timingSafeEqual to protect against timing attacks

05Provides SQL schemas for tracking payment notifications and order updates

06171 GitHub stars

Use Cases

01Migrating payment processing logic to modern frameworks like Next.js

02Building a secure payment notification listener for a Taiwanese online store

03Automating real-time order status updates after successful PAYUNi transactions

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add paid-tw/skills payuni-webhook

For use in Claude.ai and ChatGPT

Download Skill