PayPal Sandbox 400 error after redirection - laravel

Question

i use laravel V6
$apiContext = new \PayPal\Rest\ApiContext(
new \PayPal\Auth\OAuthTokenCredential(
'token..',
'token..'
)
);
//dd($transaction);
$callbackUrl = url('/paypal/status');
$payer = new \PayPal\Api\Payer();
$payer->setPaymentMethod('paypal');
$amount = new \PayPal\Api\Amount();
$amount->setTotal('1.00');
$amount->setCurrency('USD');
$transaction = new \PayPal\Api\Transaction();
$transaction->setAmount($amount);
$redirectUrls = new \PayPal\Api\RedirectUrls();
$redirectUrls->setReturnUrl($callbackUrl)
->setCancelUrl($callbackUrl);
$payment = new \PayPal\Api\Payment();
$payment->setIntent('sale')
->setPayer($payer)
->setTransactions(array($transaction))
->setRedirectUrls($redirectUrls);
try {
$payment->create($apiContext);
//dd($payment);
//dd($payment->getApprovalLink());
return redirect()->away($payment->getApprovalLink());
} catch (\PayPal\Exception\PayPalConnectionException $ex) {
var_dump(json_decode($ex->getData()));
exit(1);
}
that's the controller, I followed the documentation enter link description here
but I get a 400 error enter link description here
The link it generates is as follows https://www.sandbox.paypal.com/webapps/hermes?flow=1-P&ulReturn=true&token=EC-88M93704JL735000S&country.x=US&locale.x=es_XC#/checkout/genericError?code=UEFZTUVOVF9ERU5JRUQ%3D
I can not understand why the error .. the client_id secret, are fine .. anyway it is directly in the controller and check that the sandbox account has a balance

Answer 1

For that ClientId/Secret it looks like the receiving account in the PayPal sandbox is from a country that cannot receive any payments, such as Bolivia. Create a new sandbox business account at https://www.paypal.com/signin?intent=developer&returnUri=https%3A%2F%2Fdeveloper.paypal.com%2Fdeveloper%2Faccounts%2F for a different country that is able to receive PayPal payments, and then create a REST app for this new sandbox business account in the 'My Applications' side tab.
It looks like you are using an obsolete PHP integration, with the old v1 payments SDK
You should instead use the v2 Checkout-PHP-SDK, with two routes, one for 'Set Up Transaction' and one for 'Capture Transaction', documented here: https://developer.paypal.com/docs/checkout/reference/server-integration/
Instead of redirecting to the approval URL, use this front-end UI: https://developer.paypal.com/demo/checkout/#/pattern/server -- this gives an "in context" checkout experience that keeps your site loaded in the background, which provides a much superior modern web experience