Installation

pip install pyinapp

Usage

Currently pyinapp supports Google Play and App Store receipts validation.

Google Play:

from pyinapp import GooglePlayValidator, InAppValidationError


bundle_id = 'com.yourcompany.yourapp'
api_key = 'API key from the developer console'
validator = GooglePlayValidator(bundle_id, api_key)

try:
    purchase = validator.validate('receipt', 'signature')
    process_purchase(purchase)
except InAppValidationError:
    """ handle validation error """

App Store:

from pyinapp import AppStoreValidator, InAppValidationError


bundle_id = 'com.yourcompany.yourapp'
validator = AppStoreValidator(bundle_id)

try:
    purchase = validator.validate('receipt')
    process_purchase(purchase)
except InAppValidationError:
    """ handle validation error """

Important! On iOS 7+ all receipts may contain more than one purchase so you have to deal with a list of purchases. For the sake of convenience you can process purchases this way:

def process_purchase(purchase):
    process(*purchase) if isinstance(purchase, list) else process(purchase)


def process(*purchases):
    for p in purchases:
        """ for instance, save p to db and add a player some coins for it """

This approach allows to process both Google Play and App Store purchases the same way.

Purchase

Purchase is a universal wrapper for Google Play and App Store receipts. It contains the following fields:

• transaction_id: id of the purchase (transaction_id for App Store and orderId for Google Play);
• product_id: what product has been purchased (product_id for App Store and productId for Google Play);
• quantity: how many products have been purchased (quantity for App Store and always 1 for Google Play - there's no such field in Google Play receipt);
• purchased_at: when the product has been purchased, UNIX timestamp (purchase_date for App Store and purchaseTime for Google Play).