python - 为什么代码在收到响应后不执行

Question

我正在运行下面的代码，它将用户带到 PayPal 进行付款，然后按预期将它们返回到 return_url。但是，代码不会进一步执行，也不会执行付款。

我的代码基于 https://github.com/paypal/rest-api-sdk-python :

class PayPalHandler(tornado.web.RequestHandler):

    def get(self):

        logging.basicConfig(level=logging.INFO)

        paypal.configure({
                             "mode": PAYPAL_MODE, 
                             "client_id": PAYPAL_CLIENT_ID,
                             "client_secret": PAYPAL_CLIENT_SECRET})



        payment = paypal.Payment({
            "intent":  "sale",


            "payer":  {
                 "payment_method":  "paypal" },


            "redirect_urls": {
                 "return_url": "http://127.0.0.1:8000/ty",
                  "cancel_url": "http://127.0.0.1:8000/" },


            "transactions":  [ {

                 "item_list": {
                      "items": [{
                                 "name": "membership",
                                 "price": "2.00",
                                 "currency": "GBP",
                                 "quantity": 1 }]},


                      "amount":  {
                            "total":  "2.00",
                             "currency":  "GBP" },
                             "description":  "One of membership fee." } ] } )

        redirect_url = ""

        if payment.create():
            print("Payment[%s] created successfully"%(payment.id))

            for link in payment.links:
                if link.method == "REDIRECT":
                    redirect_url = link.href
            print("Redirect for approval: %s"%(redirect_url))
            return self.redirect(redirect_url)

        else:
            print("Error while creating payment.")
            print(payment.error)


        response = payment.to_dict()
        print response
        payment = paypal.Payment.find(payment.id)

        if payment.execute({"payer_id": response['payer_id']}):              
            print ("Payment executed successfully")
        else:
            print(payment.error) # Error Hash

        print payment.to_dict()

        print userData

所以在 https://devtools-paypal.com/guide/pay_paypal/python?success=true&token=EC-8JL96732FP068791F&PayerID=QQGSRNHDACTLJ 的例子中.第 5 步没有发生，PayPal 没有发送响应？

Answer 1

这是来自 PayPal 的 Avi。我对 Tornado 不是很熟悉，但是在 return self.redirect(redirect_url) 这行之后发生在您的代码中，并将用户返回到 payment.execute({"payer_id": response['payer_id']}) 中的 return_url您是否正确获取了 payer_id？ Payer_id 作为参数之一返回附加到 return_url，格式为 http://<return_url>?token=EC-60U79048BN7719609&PayerID=7E7MGXCWTTKK2 .另外，你执行payment = paypal.Payment.find(payment.id)后付款状态如何？ .我的另一个建议是查看是否 print payment.error打印一条有用的调试消息和一个 debug_id，paypal 商家技术服务可以使用它来查看问题。