我正在尝试将express-checkout API与node.js和express集成。这是我第一次使用PayPal的API而且我无法让灯箱停止旋转并允许用户批准和授权付款。当用户点击结帐按钮时，payment方法被调用两次（使用2个不同的ID创建2个付款，时间差约为2分钟）并且灯箱弹出但仍保持旋转但不提示用户做任何事情。我很感激任何帮助。
我的客户端代码：
<div id="paypal-button"></div>
<script>
paypal.Button.render({
env: 'sandbox', // Or 'sandbox',
commit: true, // Show a 'Pay Now' button
style: {
color: 'gold',
size: 'small'
},
payment: function() {
/* Make a call to the server to set up the payment */
return paypal.request.post("http://localhost:3000/paypal/create-payment")
.then(function(res) {
return res.id;
})
},
onAuthorize: function(data, actions) {
/*
* Execute the payment here
*/
return paypal.request.post("http://localhost:3000/paypal/execute-payment",
{
paymentID: data.paymentID,
payerID: data.payerID
}).then(function(res) {
// The payment is complete!
// You can now show a confirmation message to the customer
window.alert("PAYMENT COMPLETE!");
});
},
onCancel: function(data, actions) {
/*
* Buyer cancelled the payment
*/
console.log("BUYER CANCELLED!");
},
onError: function(err) {
/*
* An error occurred during the transaction
*/
console.log(err);
}
}, '#paypal-button');
</script>
我的服务器端代码：
// CREATE PAYMENT ROUTE
app.post("/paypal/create-payment", function(req, res){
// CREATE JSON REQUEST
var create_payment_json = {
"intent": "sale",
"redirect_urls":
{
"return_url": "https://localhost:3000/success",
"cancel_url": "https://localhost:3000/cancel"
},
"payer":
{
"payment_method": "paypal"
},
"transactions": [
{
"amount":
{
"total": "",
"currency": "USD",
"details":{
"subtotal": "",
"shipping": "0.00",
"tax": "0.00",
"shipping_discount": "0.00"
}
},
"item_list":
{
"items": []
},
"description": "Test shopping cart transaction."
}]
};
// Change the "total", "subtotal", and "items" array in the json request
create_payment_json["transactions"][0]["amount"]["total"] = cart.totalPrice.toString();
create_payment_json["transactions"][0]["amount"]["details"]["subtotal"] = cart.totalPrice.toString();
// Dummy variable for less typing
var itemsArray = create_payment_json["transactions"][0]["item_list"]["items"];
// 1) Access each puppy in the cart
// 2) Create an object with the following properties:
// quantity, name, price, currency, description, and tax
// 3) push that object into itemsArray
cart["puppies"].forEach(function(puppy){
var dummy = {
"quantity" : "1",
"name" : puppy.name,
"price" : puppy.price.toString(),
"currency" : "USD",
"description" : puppy.description,
"tax" : "0"
};
itemsArray.push(dummy);
});
// Send a Create Payment request to the Payments API
paypal.payment.create(create_payment_json, function (error, payment){
if (error) {
console.log(error);
} else {
console.log(payment);
console.log("==============");
}
});
});
// EXECUTE PAYMENT ROUTE
app.post("/paypal/execute-payment", function(req, res){
var payerId = { payer_id: req.query.PayerID };
var paymentId = req.query.paymentId;
console.log("Payer ID: " + payerId);
console.log("Paymend ID: " + paymentId);
paypal.payment.execute(paymentId, payerId, function(error, payment){
if (error){
console.log(error);
} else {
if(payment.state === "approved"){
console.log(payment);
res.send("SUCCESS");
} else {
console.log("payment not successful");
}
}
});
});
console.log(payment)方法中的paypal.payment.create运行两次。这就是我知道payment方法被调用两次的方式。我不知道如何解决这个问题。任何帮助或建议表示赞赏！
更新：将return res.paymentId更改为return res.id，但没有运气。