如何将数据绑定到paypal-rest-sdk

Question

例如，当我在示例中使用相同的json对象时，一切都是正常的，但是当我尝试像req.body.totalPrice这样放入我的数据时，我得到一个错误。

var create_payment_json = {
"intent": "sale",
"payer": {
    "payment_method": "paypal"
},
"redirect_urls": {
    "return_url": "http://return.url",
    "cancel_url": "http://cancel.url"
},
"transactions": [{
    "item_list": {
        "items": [{
            "name": "item",
            "sku": "item",
            "price": "1.00",
            "currency": "USD",
            "quantity": 1
        }]
    },
    "amount": {
        "currency": "USD",
        "total": req.body.totalPrice // return error
    },
    "description": "This is the payment description."
}]
};

Answer 1

问题是项目价格和金额价格应该相同，否则将出现400错误