在后端Node.js上从Google Play验证应用内购买

Question

I am working on an mobile app which have some kind of in-app-purchases..

Now on backend/Server-side i want to validate the purchase information from google . There are few module in node for validation but they just validate that data is correct but not contact google for the same. can anyone give any suggations for the same.. In-app-purchase data is like ie

{
   "orderId":"12999763169054705758.1364365967744519",
   "packageName":"my package name",
   "productId":"77",
   "purchaseTime":1366217534000,
   "purchaseState":0,
   "purchaseToken":"utfwimslnrrwvglktizikdcd.AOJ1OwZ4l5oXz_3d2SAWAAUgFE3QErKoyIX8WuSEnBW26ntsyDmlLgoUd5lshqIY2p2LnlV4tpH4NITB4mJMX98sCtZizH7wGf6Izw3tfW_GflJDKFyb-g"
}

Answer 1

Have you tried iab_verifier module for same

In this Google Play public key is required to authenticate the app billing

var IABVerifier = require('iab_verifier'),

var googleplay_public_key = "-- YOUR PUBLIC KEY --";
var googleplayVerifier = new IABVerifier(googleplay_public_key);

var receiptData = receiptDataFromClient;
var receiptSignature = signatureDataFromClient;

var isValid = googleplayVerifier.verifyReceipt(receiptData,receiptSignature);

if (result) {
    // Receipt is valid. Grab a beer celebrate!
} else {
    // Receipt is NOT valid... 
} 

thanks