node-InAppBilling
Android Google Play In-app Billing verification lib
Google Play publickey input the below file.
file: 'lib/verifier.js' line number 3 : ,publicKeyString = '------------- your public key here --------------'
reference documentation - http://developer.android.com/google/play/billing/billing_overview.html
reference source - https://github.com/mgoldsborough/google-play-in-app-billing-verification