PayPal REST API - 购买后状态不会更改

Question

所以我注意到在检查付款状态时

GET /v1/payments/payment/<Payment-Id>

即使在PayPal用户购买该商品后,PayPal 响应的"状态"也不会从"已创建"更改.直到我执行付款,状态才会变为"已批准".

这使得很难区分实际已被客户批准的付款与仍在进行中的付款之间的差异,因为它们都处于"已创建"状态.json响应的唯一区别是,一旦付款实际获得批准,它似乎包含shipping_address.我不确定这是表示差异的标准方法.

在使用上述REST API调用时,判断客户端是否实际批准了PayPal事务的标准方法是什么？

注意:我已经设置并运行了PHP回调脚本.我正在开发一个故障安全系统,它不断检查数据库条目,以确保执行批准的付款(如果系统出现故障).

我以为我可以使用我设置的IPN回调脚本,CLASSIC API但似乎REST API并且CLASSIC API不兼容,因为IPN回调不包含事务ID或任何必要的有用信息.

似乎在使用REST API时,如果您错过了对您的Web服务器的重定向调用,那么该事务将永远丢失.

Answer 1

您不会从state查找 API 响应中的字段中得知已批准的付款，而是在 JSON 正文中查找该payer对象，并且该信息将为您指示已批准的付款资源，这是正确的。

以下是客户重定向之前/之后相同 PAY-ID 的 JSON 响应（用户批准）

1. 查找付款/v1/payments/payment/PAY-9J02491382988403BK3BMC6I（在用户批准之前）：

   {
      "id": "PAY-9J02491382988403BK3BMC6I",
      "intent": "sale",
      "state": "created",
      "cart": "07U14103P0008801U",
      "transactions": [   {
         "amount":       {
            "total": "80.00",
            "currency": "USD"
         },
         "payee": {"email": "USM@email.com"},
         "invoice_number": "55a460ff696br",
         "item_list":       {
            "items":          [
                           {
                  "name": "Test Ticket 1",
                  "sku": "55a460ff65f13",
                  "price": "10.00",
                  "currency": "USD",
                  "quantity": 1
               },
                           {
                  "name": "Test Ticket 2",
                  "sku": "55a460ff66c7a",
                  "price": "20.00",
                  "currency": "USD",
                  "quantity": 2
               },
                           {
                  "name": "Test Ticket 3",
                  "sku": "55a460ff66ce2",
                  "price": "10.00",
                  "currency": "USD",
                  "quantity": 3
               }
            ],
            "shipping_address":          {
               "recipient_name": "Test Name",
               "line1": "Main St 1",
               "city": "San Jose",
               "state": "CA",
               "postal_code": "95131",
               "country_code": "US"
            }
         },
         "related_resources": [],
         "notify_url": "https://bt-pduan-1.c9.io/ipn.php"
      }],
      "redirect_urls":    {
         "return_url": "http://localhost:80/getpaypal?paymentId=PAY-9J02491382988403BK3BMC6I",
         "cancel_url": "http://localhost:80/cancel"
      },
      "create_time": "2016-02-16T06:28:08Z",
      "update_time": "2016-02-16T06:28:08Z",
      "links":    [
               {
            "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-9J02491382988403BK3BMC6I",
            "rel": "self",
            "method": "GET"
         },
               {
            "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-9J02491382988403BK3BMC6I/execute",
            "rel": "execute",
            "method": "POST"
         },
               {
            "href": "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-07U14103P0008801U",
            "rel": "approval_url",
            "method": "REDIRECT"
         }
      ]
   }
   

2. 在用户批准后查找付款（我删除了一些 JSON 内容，例如交易/url 数组以提高可读性）：

   {
      "id": "PAY-9J02491382988403BK3BMC6I",
      "intent": "sale",
      "state": "created",
      "cart": "07U14103P0008801U",
      "payer":    {
         "payment_method": "paypal",
         "status": "VERIFIED",
         "payer_info":       {
            "email": "USP@email.com",
            "first_name": "Payer",
            "last_name": "US",
            "payer_id": "8FMFQ2KVYYHTY",
            "shipping_address":          {
               "recipient_name": "Test Name",
               "line1": "Main St 1",
               "city": "San Jose",
               "state": "CA",
               "postal_code": "95131",
               "country_code": "US"
            },
            "phone": "408-743-9795",
            "country_code": "US",
            "billing_address":          {
               "line1": "1 Main St",
               "line2": "",
               "city": "San Jose",
               "state": "CA",
               "postal_code": "95131",
               "country_code": "US"
            }
         }
      },
      "transactions": [],
      "redirect_urls": {},
      "create_time": "2016-02-16T06:28:08Z",
      "update_time": "2016-02-16T06:28:08Z",
      "links": []
   }
   

通过检查记录的 PAY-ID 在 API 响应中查找payer对象，您将能够保存订单并继续执行调用，以防在客户返回重定向中丢失。

此外，在这种情况下，IPN 或 webhooks 都没有帮助，因为它们是由事务级事件触发的异步消息，这意味着在执行付款之前不会有通知。