PHP 驗證 Google Play In App Purchase

#設定 Google Play Developer API Service Account

http://stackoverflow.com/questions/25481207/why-getting-error-the-project-id-used-to-call-the-google-play-developer-api-has

#Google Developer Console

https://console.developers.google.com

• 然後 選擇 奇幻射擊2 中文版 的專案
• 進去以後 先在左側的 API 和驗證 底下的 API 點一下
• 然後搜尋 Google Play Android Developer API
• 幫我啟用
• 然後再到 API 和驗證 底下的 憑證 點一下
• 建立一個新的用戶端 ID
• 應用程式類型 要點 服務帳戶
• 最後按下建立用戶端 ID

#Google Play Developer Console

https://play.google.com/apps/publish

1. Google Play Developer Console > Settings > subcategory API access.
2. Make a link to your Linked Project.
3. Service Account place maybe already showing ur Service account CLIENT ID which made google developer console.

Default this account gray showing and isn’t active. So must activate and set authority manually.

You should now get a correct response from the API.

Good luck.

#給予 Service Account 驗證 IAP 的權限

• You must to connect your API with your app.
• You must go to your Google Play publish page and invite a user with the service account email in Settings -> User account & rights -> Invite new user
• give it the privileges of View financial reports.

#驗證程式

http://stackoverflow.com/questions/25054919/get-android-subscription-status-failed-with-403/25825907#25825907

<?php
    set_include_path("../src/" . PATH_SEPARATOR . get_include_path());
    require_once 'Google/Client.php';
    require_once 'Google/Service/AndroidPublisher.php';

    $client_id = ''; //Your client id
    $service_account_name = ''; //Your service account email
    $key_file_location = ''; //Your p12 file (key.p12)

    $client = new Google_Client();
    $client->setApplicationName(""); //This is the name of the linked application
    $service = new Google_Service_AndroidPublisher($client);

    $key = file_get_contents($key_file_location);
    $cred = new Google_Auth_AssertionCredentials(
        $service_account_name,
        array('https://www.googleapis.com/auth/androidpublisher'),
        $key
    );
    $client->setAssertionCredentials($cred);
    if($client->getAuth()->isAccessTokenExpired()) {
        $client->getAuth()->refreshTokenWithAssertion($cred);
    }
    $apiKey = ""; //Your API key
    $client->setDeveloperKey($apiKey);

    $package_name = ""; //Your package name (com.example...)
    $subscriptionId = "";   //SKU of your subscription item

    //Token returned to the app after the purchase
    $token = "";

    $service = new Google_Service_AndroidPublisher($client);
    $results = $service->purchases_subscriptions->get($package_name,$subscriptionId,$token,array());

    print_r ($results); //This object has all the data about the subscription
    echo "expiration: " . $results->expiryTimeMillis;
    exit;
?>