Venice is a simple gem for verifying Apple In-App Purchase receipts, and retrieving the information associated with receipt data.
There are two reasons why you should verify in-app purchase receipts on the server: First, it allows you to keep your own records of past purchases, which is useful for up-to-the-minute metrics and historical analysis. Second, server-side verification over SSL is the most reliable way to determine the authenticity of purchasing records.
See Apple's In-App Purchase Programming Guide for additional information.
Venice is named for Venice, Italy—or more specifically, Shakespeare's The Merchant of Venice. It's part of a series of world-class command-line utilities for iOS development, which includes Cupertino (Apple Dev Center management), Shenzhen (Building & Distribution), Houston (Push Notifications), and Dubai (Passbook pass generation).
$ gem install venice
require 'venice'
data = "(Base64-Encoded Receipt Data)"
if receipt = Venice::Receipt.verify(data)
p receipt.to_h
endVenice also comes with the iap binary, which provides a convenient way to verify receipts from the command line.
$ iap verify /path/to/receipt
+--------------------------------+------------------------------------+
| Receipt |
+--------------------------------+------------------------------------+
| adam_id | 664753504 |
| application_version | 123 |
| bundle_id | com.example.product |
| download_id | 30000000000005 |
| expires_at | |
| latest_receipt | |
| original_application_version | 123 |
| original_purchase_date | Fri, 07 Mar 2014 20:59:24 GMT |
| receipt_type | Production |
| requested_at | Mon, 23 Jun 2014 17:59:38 GMT |
+--------------------------------+------------------------------------+
| in_app | 1 |
| - app_item_id | |
| - cancellation_at | |
| - expires_at | |
| - original_purchase_date | |
| - original_transaction_id | 1000000000000001 |
| - product_id | com.example.product |
| - purchase_date | |
| - quantity | 1 |
| - transaction_id | 1000000000000001 |
| - version_external_identifier | |
+--------------------------------+------------------------------------+
Mattt Thompson
Venice is available under the MIT license. See the LICENSE file for more info.