关于
The PayPal Integration skill provides comprehensive guidance and implementation patterns for embedding PayPal's suite of payment products into web and mobile applications. It covers everything from client-side Smart Payment Buttons and server-side REST API management to complex workflows like Instant Payment Notifications (IPN), recurring billing cycles, and secure refund processing. This skill helps developers implement robust, compliant e-commerce checkouts while handling asynchronous transaction updates and error management using production-grade patterns.