Apple App Store Server API Client

This package provides a robust Node.js client for the Apple App Store Server API, simplifying interactions with Apple's services for in-app purchases and subscriptions. Currently stable at version 0.17.3, it receives frequent updates, often aligning with new releases and features of the underlying App Store Server API. Key features include automatic management of authentication tokens, comprehensive support for App Store Server Notifications V2, typed responses for enhanced developer experience, and helpers for decoding JWS (JSON Web Signature) items with built-in certificate validation against Apple's Certificate Authority. It distinguishes itself by abstracting away much of the complexity of the Apple API, including handling of transaction history, subscription status, and order lookup endpoints, while providing type-safe parameters for filtering and sorting.