无法在Braintree Checkout按钮中获得响应

Question

我正在使用braintree paypal结帐以进行付款，付款正常，但无法得到答复，这是我的代码

<script type="text/javascript">
var form = document.querySelector('#payment-form');
var client_token = "<?php echo BraintreeClientToken::generate(); ?>";
braintree.dropin.create({
    authorization: client_token,
    selector: '#bt-dropin',
    paypal: {
        flow: 'vault',
        onSuccess: function (nonce, email) {
            alert('sdsdsd123');
            console.log(JSON.stringify(nonce));
        },
    },
}, function (createErr, instance) {
    if (createErr) {
        console.log('Error', createErr);
        return;
    }
    form.addEventListener('submit', function (event) {
        event.preventDefault();
        instance.requestPaymentMethod(function (err, payload) {
            if (err) {
                console.log('Error', err);
                return;
            } else {
                console.log("Payment confirmation");
                console.log(payload);
            }
            // Add the nonce to the form and submit
            document.querySelector('#nonce').value = payload.nonce;
            form.submit();
        });
    });
},
);
var checkout = new Demo({
    formID: 'payment-form'
});

，但无法在OnSuccess功能中获得响应，任何人都可以告诉我Cani如何获得此成功响应，

Answer 1

_{全面披露：我在Braintree工作。如果您还有其他疑问，请随时联系支持。}

看来，您可能会混淆Braintree JSV2在UI中的PayPal与Braintree JSV3 Drop-In UI的实现。JSV3中不支持onSuccess选项。JSV3中PayPal对象的配置选项的完整列表可在此处找到。

根据您提供的代码，建议删除您的onSuccess回调函数。您仍然应该能够通过将代码放在instance.requestPaymentMethod回调功能中来实现所需的结果：

<script type="text/javascript">
  var form = document.querySelector('#payment-form');
  var client_token = "<?php echo BraintreeClientToken::generate(); ?>";
  braintree.dropin.create({
      authorization: client_token,
      selector: '#bt-dropin',
      paypal: {
          flow: 'vault'
      }
  }, function (createErr, instance) {
      if (createErr) {
          console.log('Error', createErr);
          return;
      }
      form.addEventListener('submit', function (event) {
          event.preventDefault();
          instance.requestPaymentMethod(function (err, payload) {
              if (err) {
                  console.log('Error', err);
                  return;
              }
              console.log("Payment confirmation");
              console.log(payload);
              alert('sdsdsd123');
              console.log(payload.nonce);
              // Add the nonce to the form and submit
              document.querySelector('#nonce').value = payload.nonce;
              form.submit();
          });
      });
  });
</script>