使用 python Paypal REST SDK 在 django 中动态获取付款和付款人 ID答案

【问题标题】：Getting payment and payer id dynamically in django using python Paypal REST SDK使用 python Paypal REST SDK 在 django 中动态获取付款和付款人 ID
【发布时间】：2014-04-13 04:26:15
【问题描述】：

我是 django 和 python 的新手。我正在开发一个使用 Paypal 进行交易的网站。我已成功将 python Paypal REST SDK 与我的项目集成。这是我的views.py 与集成。

def subscribe_plan(request):

    exact_plan = Plan.objects.get(id = request.POST['subscribe'])
    exact_validity = exact_plan.validity_period
    exp_date = datetime.datetime.now()+datetime.timedelta(exact_validity)
    plan = Plan.objects.get(id = request.POST['subscribe'])
    subs_plan = SubscribePlan(plan = plan,user = request.user,expiriary_date = exp_date)
    subs_plan.save()




    logging.basicConfig(level=logging.INFO)

    paypalrestsdk.configure({
      "mode": "sandbox", # sandbox or live
      "client_id": "AQkquBDf1zctJOWGKWUEtKXm6qVhueUEMvXO_-MCI4DQQ4-LWvkDLIN2fGsd",
      "client_secret": "EL1tVxAjhT7cJimnz5-Nsx9k2reTKSVfErNQF-CmrwJgxRtylkGTKlU4RvrX" })

    payment = Payment({
        "intent":  "sale",
        # ###Payer
        # A resource representing a Payer that funds a payment
        # Payment Method as 'paypal'
        "payer":  {                                              
        "payment_method":  "paypal" },
        # ###Redirect URLs
        "redirect_urls": {
        "return_url": "www.mydomain.com/execute",
        "cancel_url": "www.mydomain.com/cancel" },
        # ###Transaction
        # A transaction defines the contract of a
        # payment - what is the payment for and who
        # is fulfilling it.
        "transactions":  [ {
        # ### ItemList
        "item_list": {
            "items": [{
                "name": exact_plan.plan,
                "sku": "item",
                "price": "5.00",
                "currency": "USD",
                "quantity": 1 }]},
        "amount":  {
              "total":  "5.00",
              "currency":  "USD" },
        "description":  "This is the payment transaction description." } ] }   )




selected_plan = request.POST['subscribe']
context = RequestContext(request)

if payment.create():

    print("Payment %s created successfully"%payment.id)

    for link in payment.links:#Payer that funds a payment
        if link.method=="REDIRECT":
            redirect_url=link.href
            ctx_dict = {'selected_plan':selected_plan,"payment":payment}
            print("Redirect for approval: %s"%redirect_url)
            return redirect(redirect_url,context)
else:                             
    print("Error %s"%payment.error)
    ctx_dict = {'selected_plan':selected_plan,"payment":payment}
    return render_to_response('photo/fail.html',ctx_dict,context)

在支付字典中 www.mydomain.com/execute 是作为返回 url 和 www.mydomain.com/cancel em> 作为取消 url 给出。现在对于该返回 url 和取消 url，我必须创建另一个视图，如下所示。

def payment_execute(request):
logging.basicConfig(level=logging.INFO)

# ID of the payment. This ID is provided when creating payment.
payment = paypalrestsdk.Payment.find("PAY-57363176S1057143SKE2HO3A")
ctx = {'payment':payment}
context = RequestContext(request)

# PayerID is required to approve the payment.
if payment.execute({"payer_id": "DUFRQ8GWYMJXC" }):  # return True or False
  print("Payment[%s] execute successfully"%(payment.id))
  return render_to_response('photo/execute.html',ctx,context)


else:
  print(payment.error)
  return render_to_response('photo/dismiss.html',ctx,context)

您可以在 payment_execute 视图中看到这里，我放了静态 payment id 和静态 payer id .有了这个静态付款 ID 和付款人 ID，我已经成功地使用 Paypal 完成了一次付款。但是这个payment id和payer id必须是Dynamic强>。我如何动态地设置payment id和payer id 在 payment_execute 视图中。我已将付款 ID 保存在用户会话中（在我的 subscribe_plan 视图中），并且我知道付款人 ID 在 return url 中提供，但我不知道如何因为我缺乏知识而去取它们。我该怎么做？

【问题讨论】：

嗨@zogo，你是如何通过这个PayPal请求从Django模板传递csrf_token的？我一直坚持下去，请你帮帮我吗？

标签： python django rest paypal

【解决方案1】：

payment id : 在订阅视图中，保存payment id

request.session["payment_id"] = payment.id

稍后在 payment_execute 视图中，获取付款 id：

payment_id = request.session["payment_id"]

payment = paypalrestsdk.Payment.find(payment_id)
付款人 ID：

您似乎已经知道付款人 ID 是返回 url 中提供的参数。在您的 payment_execute 视图中，您应该能够使用以下命令访问付款人 ID：

request.GET.get("PayerID")

以下链接应该有助于尝试更多和详细的文档：

https://devtools-paypal.com/guide/pay_paypal/python?interactive=ON&env=sandbox

https://developer.paypal.com/webapps/developer/docs/integration/web/accept-paypal-payment/

【讨论】：

【解决方案2】：

使用 Avi Das 的答案，我设法使用 POST 而不是 GET 来获取此信息：

class PaypalExecutePayment:

    def __call__(self, request):
        payer_id = request.POST.get("payerID")
        payment_id = request.POST.get("paymentID")

        payment = paypalrestsdk.Payment.find(payment_id)

        if payment.execute({"payer_id": payer_id}):
            print("Payment execute successfully")
        else:
            print(payment.error)  # Error Hash

将课程连接到我的 api：

from django.views.decorators.csrf import csrf_exempt

urlpatterns = [
    ...
    url('^api/execute-payment/', csrf_exempt(views.PaypalExecutePayment())),
    ... 
]

【讨论】：