Get android subscription status, failed with 403

Question

While trying to get android in-app subscription status (with expiry date), I get the following error message:

{
 "error": {
  "errors": [
   {
    "domain": "androidpublisher",
    "reason": "projectNotLinked",
    "message": "The project id used to call the Google Play Developer API has not been linked in the Google Play Developer Console."
   }
  ],
  "code": 403,
  "message": "The project id used to call the Google Play Developer API has not been linked in the Google Play Developer Console."
 }
}

The URL is: https://www.googleapis.com/androidpublisher/v2/applications/[packageName]/inapp/[productId]/purchases/[purchase_token]?access_token=[access_token]

It says the project id is not linked. I have done the following:

1. Create the project in Google Developer Console.
2. Turn on the Google Android Publisher API.
3. Link the project ID as mentioned in API access page (https://developers.google.com/android-publisher/getting_started)
4. Fill in the packageName, productId (from in app-purchase), purchase_token (from Android app)

Not sure why the error message appear as above. I have tried with the OAuth2 playground with no luck (https://developers.google.com/oauthplayground/)

Answer 1

I spent some time on this but at the end the error message says all: "[...] has not been linked in the Google Play Developer Console".

I spent hours looking in the Google Developer Console, but the place where to link the project is in the Google Play Developer console.

Just go to Settings -> Api Access and you'll be able to link the project you created in the Google Developer Console.

Here is a working PHP solution to get the subscription status. You need to create a service account in the Google Developer Console -> 'your project' -> API & Auth -> Credential and download the Google API PHP Client from https://github.com/google/google-api-php-client

    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;

Answer 2

I'm having the same issue. Seems the authentication has changed in the v2 api.

You can still use the old api endpoint (v1.1). it works fine for me.

https://www.googleapis.com/androidpublisher/v1.1/applications/{packageName}/inapp/{productId}/purchases/{token}

Answer 3

I used Fabrizio Farenga's code and the Google API code with good results. In addition, it's worth noting that the permission your service account needs to access this is just View financial reports.

Answer 4

It's 2019 and this problem still exists. However, I found on another answer somewhere that someone said you had to create a new product in your account after setting this app up... and that actually worked for me.