ECPay (綠界) Integration

STATUS: SKELETON — body pending.

When to use this skill

• Integrating ECPay for credit card / ATM / CVS 代碼 / 超商取貨付款
• Combining ECPay logistics + payment in one flow
• Computing / verifying CheckMacValue signatures
• Handling ECPay callback webhooks
• Reconciliation with ECPay merchant portal

Do NOT use when

• Non-ECPay provider → specific skill for that provider
• Pure logistics (no payment) → tw-ecom-logistics-cvs

Core concepts