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Awesome Open Source

InAppPy

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Table of contents

  1. Introduction
  2. Installation
  3. Google Play (receipt + signature)
  4. Google Play (verification)
  5. Google Play (verification with result)
  6. App Store (receipt + using optional shared-secret)
  7. App Store Response (validation_result / raw_response) example
  8. App Store, asyncio version (available in the inapppy.asyncio package)
  9. Development
  10. Donate

1. Introduction

In-app purchase validation library for Apple AppStore and GooglePlay (App Store validator have async support!). Works on python3.6+

2. Installation

pip install inapppy

3. Google Play (validates receipt against provided signature using RSA)

from inapppy import GooglePlayValidator, InAppPyValidationError


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

try:
    # receipt means `androidData` in result of purchase
    # signature means `signatureAndroid` in result of purchase
    validation_result = validator.validate('receipt', 'signature')
except InAppPyValidationError:
    # handle validation error
    pass

An additional example showing how to authenticate using dict credentials instead of loading from a file

import json
from inapppy import GooglePlayValidator, InAppPyValidationError


bundle_id = 'com.yourcompany.yourapp'
# Avoid hard-coding credential data in your code. This is just an example.
api_credentials = json.loads('{'
                             '   "type": "service_account",'
                             '   "project_id": "xxxxxxx",'
                             '   "private_key_id": "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",'
                             '   "private_key": "-----BEGIN PRIVATE KEY-----\nXXXXXXXXXXXXXXXXXXXXXXXXXXXXX==\n-----END PRIVATE KEY-----\n",'
                             '   "client_email": "[email protected]",'
                             '   "client_id": "XXXXXXXXXXXXXXXXXX",'
                             '   "auth_uri": "https://accounts.google.com/o/oauth2/auth",'
                             '   "token_uri": "https://oauth2.googleapis.com/token",'
                             '   "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",'
                             '   "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/XXXXXXXXXXXXXXXXX.iam.gserviceaccount.com"'
                             ' }')
validator = GooglePlayValidator(bundle_id, api_credentials)

try:
    # receipt means `androidData` in result of purchase
    # signature means `signatureAndroid` in result of purchase
    validation_result = validator.validate('receipt', 'signature')
except InAppPyValidationError:
    # handle validation error
    pass

4. Google Play verification

from inapppy import GooglePlayVerifier, errors


def google_validator(receipt):
    """
    Accepts receipt, validates in Google.
    """
    purchase_token = receipt['purchaseToken']
    product_sku = receipt['productId']
    verifier = GooglePlayVerifier(
        GOOGLE_BUNDLE_ID,
        GOOGLE_SERVICE_ACCOUNT_KEY_FILE,
    )
    response = {'valid': False, 'transactions': []}
    try:
        result = verifier.verify(
            purchase_token,
            product_sku,
                            is_subscription=True
        )
        response['valid'] = True
        response['transactions'].append(
            (result['orderId'], product_sku)
        )
    except errors.GoogleError as exc:
        logging.error('Purchase validation failed {}'.format(exc))
    return response

5. Google Play verification (with result)

Alternative to .verify method, instead of raising an error result class will be returned.

from inapppy import GooglePlayVerifier, errors


def google_validator(receipt):
    """
    Accepts receipt, validates in Google.
    """
    purchase_token = receipt['purchaseToken']
    product_sku = receipt['productId']
    verifier = GooglePlayVerifier(
        GOOGLE_BUNDLE_ID,
        GOOGLE_SERVICE_ACCOUNT_KEY_FILE,
    )
    response = {'valid': False, 'transactions': []}

    result = verifier.verify_with_result(
        purchase_token,
        product_sku,
        is_subscription=True
    )

    # result contains data
    raw_response = result.raw_response
    is_canceled = result.is_canceled
    is_expired = result.is_expired

    return result

6. App Store (validates receipt using optional shared-secret against iTunes service)

from inapppy import AppStoreValidator, InAppPyValidationError


bundle_id = 'com.yourcompany.yourapp'
auto_retry_wrong_env_request=False # if True, automatically query sandbox endpoint if
                                   # validation fails on production endpoint
validator = AppStoreValidator(bundle_id, auto_retry_wrong_env_request=auto_retry_wrong_env_request)

try:
    exclude_old_transactions=False # if True, include only the latest renewal transaction
    validation_result = validator.validate('receipt', 'optional-shared-secret', exclude_old_transactions=exclude_old_transactions)
except InAppPyValidationError as ex:
    # handle validation error
    response_from_apple = ex.raw_response  # contains actual response from AppStore service.
    pass

7. App Store Response (validation_result / raw_response) example

{
    "latest_receipt": "MIIbngYJKoZIhvcNAQcCoIIbj...",
    "status": 0,
    "receipt": {
        "download_id": 0,
        "receipt_creation_date_ms": "1486371475000",
        "application_version": "2",
        "app_item_id": 0,
        "receipt_creation_date": "2017-02-06 08:57:55 Etc/GMT",
        "original_purchase_date": "2013-08-01 07:00:00 Etc/GMT",
        "request_date_pst": "2017-02-06 04:41:09 America/Los_Angeles",
        "original_application_version": "1.0",
        "original_purchase_date_pst": "2013-08-01 00:00:00 America/Los_Angeles",
        "request_date_ms": "1486384869996",
        "bundle_id": "com.yourcompany.yourapp",
        "request_date": "2017-02-06 12:41:09 Etc/GMT",
        "original_purchase_date_ms": "1375340400000",
        "in_app": [{
            "purchase_date_ms": "1486371474000",
            "web_order_line_item_id": "1000000034281189",
            "original_purchase_date_ms": "1486371475000",
            "original_purchase_date": "2017-02-06 08:57:55 Etc/GMT",
            "expires_date_pst": "2017-02-06 01:00:54 America/Los_Angeles",
            "original_purchase_date_pst": "2017-02-06 00:57:55 America/Los_Angeles",
            "purchase_date_pst": "2017-02-06 00:57:54 America/Los_Angeles",
            "expires_date_ms": "1486371654000",
            "expires_date": "2017-02-06 09:00:54 Etc/GMT",
            "original_transaction_id": "1000000271014363",
            "purchase_date": "2017-02-06 08:57:54 Etc/GMT",
            "quantity": "1",
            "is_trial_period": "false",
            "product_id": "com.yourcompany.yourapp",
            "transaction_id": "1000000271014363"
        }],
        "version_external_identifier": 0,
        "receipt_creation_date_pst": "2017-02-06 00:57:55 America/Los_Angeles",
        "adam_id": 0,
        "receipt_type": "ProductionSandbox"
    },
    "latest_receipt_info": [{
            "purchase_date_ms": "1486371474000",
            "web_order_line_item_id": "1000000034281189",
            "original_purchase_date_ms": "1486371475000",
            "original_purchase_date": "2017-02-06 08:57:55 Etc/GMT",
            "expires_date_pst": "2017-02-06 01:00:54 America/Los_Angeles",
            "original_purchase_date_pst": "2017-02-06 00:57:55 America/Los_Angeles",
            "purchase_date_pst": "2017-02-06 00:57:54 America/Los_Angeles",
            "expires_date_ms": "1486371654000",
            "expires_date": "2017-02-06 09:00:54 Etc/GMT",
            "original_transaction_id": "1000000271014363",
            "purchase_date": "2017-02-06 08:57:54 Etc/GMT",
            "quantity": "1",
            "is_trial_period": "true",
            "product_id": "com.yourcompany.yourapp",
            "transaction_id": "1000000271014363"
        }, {
            "purchase_date_ms": "1486371719000",
            "web_order_line_item_id": "1000000034281190",
            "original_purchase_date_ms": "1486371720000",
            "original_purchase_date": "2017-02-06 09:02:00 Etc/GMT",
            "expires_date_pst": "2017-02-06 01:06:59 America/Los_Angeles",
            "original_purchase_date_pst": "2017-02-06 01:02:00 America/Los_Angeles",
            "purchase_date_pst": "2017-02-06 01:01:59 America/Los_Angeles",
            "expires_date_ms": "1486372019000",
            "expires_date": "2017-02-06 09:06:59 Etc/GMT",
            "original_transaction_id": "1000000271014363",
            "purchase_date": "2017-02-06 09:01:59 Etc/GMT",
            "quantity": "1",
            "is_trial_period": "false",
            "product_id": "com.yourcompany.yourapp",
            "transaction_id": "1000000271016119"
        }],
    "environment": "Sandbox"
}

8. App Store, asyncio version (available in the inapppy.asyncio package)

from inapppy import InAppPyValidationError
from inapppy.asyncio import AppStoreValidator


bundle_id = 'com.yourcompany.yourapp'
auto_retry_wrong_env_request=False # if True, automatically query sandbox endpoint if
                                   # validation fails on production endpoint
validator = AppStoreValidator(bundle_id, auto_retry_wrong_env_request=auto_retry_wrong_env_request)

try:
    exclude_old_transactions=False # if True, include only the latest renewal transaction
    validation_result = await validator.validate('receipt', 'optional-shared-secret', exclude_old_transactions=exclude_old_transactions)
except InAppPyValidationError as ex:
    # handle validation error
    response_from_apple = ex.raw_response  # contains actual response from AppStore service.
    pass

9. Development

# run checks and tests
tox

# setup project
make setup

# check for lint errors
make lint

# run tests
make test

# run black
make black

10. Donate

You can support development of this project by buying me a coffee ;)

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