paypal - PayPal 自适应付款错误：凭据不正确

Question

我正在 iOS 应用程序中实施 PayPal 付款。我需要将钱从客户转移到商家帐户，因此我使用旧的 MPL SDK 和自适应支付。所有作品。现在我需要在服务器端验证付款。为此，我使用PaymentDetailsAPI 方法（API 参考）。但它总是返回一个错误：

Authentication failed. API credentials are incorrect.

我在http://www.paypal-apps.com上创建了一个应用程序，并在我的 PayPal 个人资料中请求了 API 凭据。我已经尝试过使用高级帐户和商业帐户。但仍然没有结果。

Answer 1

When you switch from Live to Sandbox and the other way around you should care for the config of the mode.

Sadly I did this all in PHP, not with MPL SDK but this piece of code might be the right hint to you:

LIVE:

$apiContext = new \PayPal\Rest\ApiContext(
  new \PayPal\Auth\OAuthTokenCredential('XXXXXXXXX...XXXXXXXXXX','YYYYYYY...YYYYYYYYY')
);  
$apiContext->setConfig( array('mode' => 'live') );

SANDBOX:

$apiContext = new \PayPal\Rest\ApiContext(
  new \PayPal\Auth\OAuthTokenCredential('xxxxxxxxx...xxxxxxxxxx','yyyyyyyyyy...yyyyy')
);  
$apiContext->setConfig(array('mode' => 'sandbox'));

Do not forget to set your Mode according to your credentials (Secret Key). Paypal does not recognize the type of secret-key by its own.