何时使用 paypal python sdk 完成付款？

Question

我按照https://github.com/paypal/PayPal-Python-SDK 中列出的一些代码来构建付款。问题是在哪个阶段付款完成？我的理解是它是在“授权付款”之后和将用户重定向到“return_url”之前完成的，因为我认为“return_url”应该做一些类似“告诉用户已完成付款”而不是付款的事情。我不确定我的想法是否正确。下面是支付流程。

在 python 应用中创建付款

... skipped
"return_url": "xxx.com/payment/execute",
...

在 python 应用中授权支付

...
Redirect user to approval_url (paypal page)
...

用户在paypal中填写完所有信息后，它会将用户重定向到return_url，如下所示。

在 xxx.com/payment/execute 中执行付款

...
curl 'https://api.sandbox.paypal.com/v1/payments/payment/'+paymentId+'/execute';
...

之后我得到 JSON

    {
  "id": "PAYID-LT3I25Y9M527750ER784091X",
  "intent": "sale",
  "state": "approved",
  "cart": "1L498981HN342484R",
  "payer": {
    "payment_method": "paypal",
    "status": "UNVERIFIED",
    "payer_info": {
      "email": "ji@gmail.com",
      "first_name": "ukf",
      "last_name": "tfutf",
      "payer_id": "ZD7ELNRCHVLPY",
      "shipping_address": {
        "recipient_name": "ukf tfutf",
        "line1": "ktf",
        "city": "ktfu",
        "state": "",
        "postal_code": "",
        "country_code": "HK"
      },
      "country_code": "HK"
    }
  },
  "transactions": [
    {
      "amount": {
        "total": "5.00",
        "currency": "USD",
        "details": {}
      },
      "payee": {
        "merchant_id": "4J8HJBF56QT24",
        "email": "facilitator@gmail.com"
      },
      "description": "This is the payment transaction description.",
      "item_list": {
        "items": [
          {
            "name": "item",
            "sku": "item",
            "price": "5.00",
            "currency": "USD",
            "quantity": 1
          }
        ],
        "shipping_address": {
          "recipient_name": "ukf tfutf",
          "line1": "ktf",
          "city": "ktfu",
          "state": "",
          "postal_code": "",
          "country_code": "HK"
        },
        "shipping_options": [
          null
        ]
      },
      "related_resources": [
        {
          "sale": {
            "id": "96712163V8788712D",
            "state": "completed",
            "amount": {
              "total": "5.00",
              "currency": "USD",
              "details": {
                "subtotal": "5.00"
              }
            },
            "payment_mode": "INSTANT_TRANSFER",
            "protection_eligibility": "ELIGIBLE",
            "protection_eligibility_type": "ITEM_NOT_RECEIVED_ELIGIBLE, UNAUTHORIZED_PAYMENT_ELIGIBLE",
            "transaction_fee": {
              "value": "0.47",
              "currency": "USD"
            },
            "receipt_id": "2545046194101961",
            "parent_payment": "PAYID-LT3I25Y9M527750ER784091X",
            "create_time": "2019-06-04T15:29:48                  Z",
            "update_time": "2019-06-04T15:29:48                  Z",
            "links": [
              {
                "href": "https://api.sandbox.paypal.com/v1/payments/sale/96712163V8788712D",
                "rel": "self",
                "method": "GET"
              },
              {
                "href": "https://api.sandbox.paypal.com/v1/payments/sale/96712163V8788712D/refund",
                "rel": "refund",
                "method": "POST"
              },
              {
                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAYID-LT3I25Y9M527750ER784091X",
                "rel": "parent_payment",
                "method": "GET"
              }
            ],
            "soft_descriptor": "PAYPAL *TESTFACILIT"
          }
        }
      ]
    }
  ],
  "create_time": "2019-06-04T15:29:49   Z",
  "links": [
    {
      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAYID-LT3I25Y9M527750ER784091X",
      "rel": "self",
      "method": "GET"
    }
  ]
}

Answer 1

当用户在 PayPal 网站上批准付款时，付款在 PayPal 一方完成。之后，它将用户重定向到redirect_url。该网页确实应该通知用户他们的付款已完成。只要没有出错，您就可以在贝宝沙箱上检查此交易/付款。

另请注意，您使用的 SDK 实际上很快就会被弃用。在您链接的 github 上，它显示“请注意，如果您正在与 PayPal Checkout 集成，则此 SDK 和相应的 API v1/payments 正在被弃用。”相反，我建议您尝试与此 SDK 集成：https://github.com/paypal/Checkout-Python-SDK，这是 PayPal 的最新版本。除了使用较新的 SDK，我还建议您尝试使用 PayPal 的智能结帐按钮。它们应该让您的生活更轻松一些。

在过去的两个月里，我一直在各种项目中使用这些 SDK，但我个人认为它不是一个简单的过程，但希望这会有所帮助！