Node.js와 iOS/Android in App Purchase 연동 방법

http://korea-developer.tistory.com/entry/iOS-IAPInApp-Purchase

https://www.npmjs.com/package/in-app-purchase

https://www.npmjs.com/package/iap

안드로이드 앱 내 결제

http://slogup.com/android-in-app-billing/

Android In-App Billing 보안 정리

http://theeye.pe.kr/archives/2130