PayPal Express checkout.js-在checkout.js中未定义的索引

Question

TypeError: Cannot read property 'indexOf' of undefined
    at Object.onSuccess (https://www.paypalobjects.com/api/checkout.js:11449:30)
    at _loop2 (https://www.paypalobjects.com/api/checkout.js:1670:62)
    at SyncPromise.dispatch (https://www.paypalobjects.com/api/checkout.js:1700:29)
    at SyncPromise.then (https://www.paypalobjects.com/api/checkout.js:1718:18)
    at Component.buildUrl (https://www.paypalobjects.com/api/checkout.js:11448:40)
    at Object.onSuccess (https://www.paypalobjects.com/api/checkout.js:8770:57)
    at _loop2 (https://www.paypalobjects.com/api/checkout.js:1670:62)
    at SyncPromise.dispatch (https://www.paypalobjects.com/api/checkout.js:1700:29)
    at SyncPromise.then (https://www.paypalobjects.com/api/checkout.js:1718:18)
    at Function.syncPromiseTry [as try] (https://www.paypalobjects.com/api/checkout.js:1763:42)"

return props.payment().then(function(token) {
    if (token.indexOf("BA-") === 0) {

        paypal.Button.render({
            env: 'sandbox', // Specify 'sandbox' for the test environment
            payment: function() {
                var CREATE_PAYMENT_URL = '/api/checkout/create-express-payment';
                paypal.request.post(CREATE_PAYMENT_URL)
                    .then(function(data) {
                        console.log('Payment ID: ', data.paymentId);
                        resolve(data.paymentId);
                    })
                    .catch(function(err) {
                        reject(err);
                    });
            },

            onAuthorize: function(data, actions) {
                // Execute the payment here, when the buyer approves the transaction
            }

        }, '#paypal-button');

Answer 1

我有这个问题。我的用例是Express Checkout（客户端）和Paypal SDK（服务器）。贝宝将此称为高级集成。

我通过以下方式解决了这个问题：

我让我的服务器返回一个JSON对象作为响应，并带有一个属性“paymentID”。在Paypal文档的高级集成页面中对此进行了解释，但它的重要性没有说得足够清楚。

{
    "paymentID": "PAY-0J356327TH335450NK56Y2PQ"
}

 paypal.Button.render({
   env: 'sandbox',
   payment: function(resolve, reject) {
     var CREATE_PAYMENT_URL = 'http://localhost/api/payment/create';
     paypal.request.post(CREATE_PAYMENT_URL, {
     // js object used to create payment
     }).then(function(data) {
         resolve(data.paymentID);
     }).catch(function(err) {
         reject(err);
     });
   },
   onAuthorize: function(data) {
     var EXECUTE_PAYMENT_URL = 'http://localhost/api/payment/execute';
     paypal.request.post(EXECUTE_PAYMENT_URL, {
     // js object used to complete payment
     // needs to include properties for paymentID and payerID
     }).then(function(data) {
     // process results after transaction is completed
     }).catch(function(err) {});
   },
   onCancel: function(data) {}
 }, '#paypal-button');