無法將變量傳遞給PayPal Payments Rest API的JS腳本

Question

問題是我無法將PayPal腳本所需的paymentID變量從PHP傳遞給JS。 （此腳本或PHP腳本永遠不會運行）。

我正在按照以下步驟操作： https : //developer.paypal.com/docs/integration/direct/express-checkout/integration-jsv4/advanced-integration/#set-up-the-payment

我被困在第4步。

我使用了本教程中的代碼： http : //paypal.github.io/PayPal-PHP-SDK/sample/doc/payments/CreatePaymentUsingPayPal.html

這是HTML：

{% extends 'layout/master.twig' %}

{% block title %} {{ parent() }}PayPal {% endblock title %}

{% block head %}
    <script src="https://www.paypalobjects.com/api/checkout.js"></script>
{% endblock %}

{% block header %} Testing PayPal {% endblock header %}


{% block content %}

    <div id="paypal-button"></div>

{% endblock content %}


{% block scripts %}
    <script>
        paypal.Button.render({

            env: 'sandbox', // Optional: specify 'production' environment

            payment: function(resolve, reject) {

                var CREATE_PAYMENT_URL = 'http://patch-request.app/paypal/payment/create';

                paypal.request.get(CREATE_PAYMENT_URL)
                    .then(function(data) {
                        alert(data);
                        console.log(data);
                        resolve(data.paymentID);
                    })
                    .catch(function(err) {
                        alert(data);
                        console.log(data);
                        reject(err);
                    });
            },

            onAuthorize: function(data) {

                // Note: you can display a confirmation page before executing

                var EXECUTE_PAYMENT_URL = 'http://patch-request.com/paypal/execute-payment';

                paypal.request.post(EXECUTE_PAYMENT_URL,
                    { paymentID: data.paymentID, payerID: data.payerID })

                    .then(function(data) { /* Go to a success page */ })
                    .catch(function(err) { /* Go to an error page  */ });
            }

        }, '#paypal-button');
    </script>
{% endblock scripts %}

這是我要運行的腳本：

    public function create_payment ()
    {
        $payer = new Payer();
        $payer->setPaymentMethod("paypal");

        $item1 = new Item();
        $item1->setName('Ground Coffee 40 oz')
            ->setCurrency('USD')
            ->setQuantity(1)
            ->setSku("123123")// Similar to `item_number` in Classic API
            ->setPrice(7.5);
        $item2 = new Item();
        $item2->setName('Granola bars')
            ->setCurrency('USD')
            ->setQuantity(5)
            ->setSku("321321")// Similar to `item_number` in Classic API
            ->setPrice(2);

        $itemList = new ItemList();
        $itemList->setItems([$item1, $item2]);

        $details = new Details();
        $details->setShipping(1.2)
            ->setTax(1.3)
            ->setSubtotal(17.50);

        $amount = new Amount();
        $amount->setCurrency("USD")
            ->setTotal(20)
            ->setDetails($details);

        $transaction = new Transaction();
        $transaction->setAmount($amount)
            ->setItemList($itemList)
            ->setDescription("Payment description")
            ->setInvoiceNumber(uniqid());

//        $baseUrl = getBaseUrl();
        $baseUrl = "http://patch-request.app";
        $redirectUrls = new RedirectUrls();
        $redirectUrls->setReturnUrl("$baseUrl/ExecutePayment.php?success=true")
            ->setCancelUrl("$baseUrl/ExecutePayment.php?success=false");

        $payment = new Payment();
        $payment->setIntent("sale")
            ->setPayer($payer)
            ->setRedirectUrls($redirectUrls)
            ->setTransactions([$transaction]);

        $request = clone $payment;

        try
        {
                $payment->create($this->apiContext); //$payment is a JSON
        }
        catch (Exception $ex)
        {
            echo 'Sth went wrong';
        }

        $approvalUrl = $payment->getApprovalLink();


        return json_encode(['paymentID' => $payment->id]);
    }

有任何想法嗎？

Answer 1

我不知道您使用的是哪種模板系統，但是您可以嘗試一下

{% block head %}
    <script src="https://www.paypalobjects.com/api/checkout.js"></script>
    // add it here
    <script>
        window.paymentID = '<?= getPaymentID(); ?>'; // you need to implement this
    </script>
{% endblock %}

現在您可以在其他JS中的任何位置訪問window.paymentID