使用Paypal进行Braintree付款与我的Paypal帐户没有关联

Question

I have been working with the implementation of Braintree payment gateway and now i am stuck with its Paypal method. The issue is describe below.

I have integrated the necessary code for for this and when selection the Paypal method and trying to login to Paypal, it always shows the error like below screenshot. [![error screen while login in to paypal][1]][1]

I think this is happening because of the client token is wrong. but i have creating the token using the php method: $clientToken = Braintree_ClientToken::generate().

(It will currently login when i give the demo client token provided by Braintree demo code).

Here below i mentioned my code . Please check and hope anyone can trigger the issue.

<?php
require_once '_environment.php';

function braintree_text_field($label, $name, $result) {
    echo('<div>' . $label . '</div>');
    $fieldValue = isset($result) ? $result->valueForHtmlField($name) : '';
    echo('<div><input type="text" name="' . $name .'" value="' . $fieldValue . '" /></div>');
    $errors = isset($result) ? $result->errors->onHtmlField($name) : array();
    foreach($errors as $error) {
        echo('<div style="color: red;">' . $error->message . '</div>');
    }
    echo("\n");
}

// CLIENT TOKEN
$clientToken = Braintree_ClientToken::generate();

if(isset($_POST['payment_method_nonce'])){   
    $nonce  = $_POST['payment_method_nonce'];
    $result = Braintree_Transaction::sale(array(
      'amount' => '91.00',
      'paymentMethodNonce' => $nonce
    ));
    if ($result->success) {
        echo($result->customer->id);
        echo($result->customer->creditCards[0]->token);
        echo 'success';
    } else {
        foreach($result->errors->deepAll() AS $error) {
          echo($error->code . ": " . $error->message . "\n");
        }
    }    
}

?>
<form id="checkout" method="post" action="">
  <div id="payment-form"></div>
  <input type="submit" value="Pay $10">
</form>

<script src="https://js.braintreegateway.com/v2/braintree.js"></script>
<script>
    var clientToken = '<?php echo trim($clientToken);?>';
    braintree.setup(clientToken, "dropin", {
        container: "payment-form"
        });
</script>

Answer 1

To create a PayPal transaction, you will need a customer id, the following sample works for me.

index.php

<?php
require("config.php"); //config.php contains Braintree_Configuration object.

$aCustomerId = '39538986'; // can be generated from braintreegateway.com vault->New Customer
$clientToken = Braintree_ClientToken::generate(array(
    "customerId" => $aCustomerId
));
;
?>




<script src="https://js.braintreegateway.com/v2/braintree.js"></script>
<script>
var clientToken = "<?php echo $clientToken ?>";
braintree.setup(clientToken, "dropin", {
  container: "payment-form"
});
</script>

<form>
    <div id="paypal-container"></div>
</form>
<script type="text/javascript">
braintree.setup(clientToken, "paypal", {
  container: "paypal-container",

  onPaymentMethodReceived: function (obj) {
   window.location.href = 'http://localhost/braintree/checkout_paypal.php?nounce='+obj.nonce;
  }
});
</script>

checkout_paypal.php

<?php
require("config.php");
$nonce = $_GET["nounce"];
$result = Braintree_Transaction::sale(array(
  'amount' => '100.00',
  'paymentMethodNonce' => $nonce,
  'options' => array(
    'submitForSettlement' => True
  )
));

?>