PayPal Checkout v2 SDK .NET 问题与 PayPalHttp.HttpResponse

Question

我在交易设置流程的最后一部分遇到问题：客户端正确调用我的后端，它调用 PayPal 来创建订单并收到状态代码为 200 的响应。

http响应返回给客户端时出现错误，这里我们意识到paypal类创建的json不完整！ 没有使 json 无效的右括号。 “} ] }”

我向贝宝团队寻求帮助，但它没有帮助我。 他们继续解决这个问题，说蜜蜂总是将完整的 json 返回给我，但我也知道这一点，因为在调试模式下，结果给了我一个链接，可以正确地将我发送回贝宝付款。

这让我明白，实际上我创建的流是完整的，但 PayPalHttp.HttpResponse 类创建了一个不正确的主体。

我附上代码。

Public Shared Async Function CreateOrder(ByVal Optional debug As Boolean = False) As Task(Of PayPalHttp.HttpResponse)

    Dim result As New Order
    Dim request = New OrdersCreateRequest()

    request.Prefer("return=representation")
    Dim newRequest As New OrderActionRequest
    request.RequestBody(BuildRequestBody(dicNameValue))


    Dim response = Await PayPalClient.client().Execute(request)

    If debug Then
    result = response.Result(Of Order)()
    Console.WriteLine("Status: {0}", result.Status)
    Console.WriteLine("Order Id: {0}", result.Id)
    Console.WriteLine("Links:")

    For Each link As LinkDescription In result.Links
    Console.WriteLine(vbTab & "{0}: {1}" & vbTab & "Call Type: {2}", link.Rel, link.Href, link.Method)
    Next

     /*--- HERE THE PROBLEM ----*/
    Dim json As String = PayPalClient.ObjectToJSONString(result)
    Console.WriteLine("Response JSON: {0}", json)
    /*----------*/

    Dim amount As AmountWithBreakdown = result.PurchaseUnits(0).AmountWithBreakdown
    Console.WriteLine("Total Amount: {0} {1}", amount.CurrencyCode, amount.Value)

    End If

    Return response
  End Function

这是不完整的 json ：

{
  "create_time": "2020-03-18T14:28:56Z",
  "id": "2LW612087K897524T",
  "intent": "CAPTURE",
  "links": [
    {
      "href": "https:\/\/api.sandbox.paypal.com\/v2\/checkout\/orders\/2LW612087K897524T",
      "method": "GET",
      "rel": "self"
    },
    {
      "href": "https:\/\/www.sandbox.paypal.com\/checkoutnow?token=2LW612087K897524T",
      "method": "GET",
      "rel": "approve"
    },
    {
      "href": "https:\/\/api.sandbox.paypal.com\/v2\/checkout\/orders\/2LW612087K897524T",
      "method": "PATCH",
      "rel": "update"
    },
    {
      "href": "https:\/\/api.sandbox.paypal.com\/v2\/checkout\/orders\/2LW612087K897524T\/capture",
      "method": "POST",
      "rel": "capture"
    }
  ],
  "purchase_units": [
    {
      "amount": {
        "breakdown": {
          "handling": {
            "currency_code": "USD",
            "value": "10.00"
          },
          "item_total": {
            "currency_code": "USD",
            "value": "180.00"
          },
          "shipping": {
            "currency_code": "USD",
            "value": "30.00"
          },
          "shipping_discount": {
            "currency_code": "USD",
            "value": "10.00"
          },
          "tax_total": {
            "currency_code": "USD",
            "value": "20.00"
          }
        },
        "currency_code": "USD",
        "value": "230.00"
      },
      "custom_id": "CUST-HighFashions",
      "description": "Sporting Goods",
      "items": [
        {
          "category": "PHYSICAL_GOODS",
          "description": "Green XL",
          "name": "T-shirt",
          "quantity": "1",
          "sku": "sku01",
          "tax": {
            "currency_code": "USD",
            "value": "10.00"
          },
          "unit_amount": {
            "currency_code": "USD",
            "value": "90.00"
          }
        },
        {
          "category": "PHYSICAL_GOODS",
          "description": "Running, Size 10.5",
          "name": "Shoes",
          "quantity": "2",
          "sku": "sku02",
          "tax": {
            "currency_code": "USD",
            "value": "5.00"
          },
          "unit_amount": {
            "currency_code": "USD",
            "value": "45.00"
          }
        }
      ],
      "payee": {
        "email_address": "sb-bzfcs1123474@business.example.com",
        "merchant_id": "55J4WA53G7WRL"
      },
      "reference_id": "PUHF",
      "shipping": {
        "address": {
          "address_line_1": "123 Townsend St",
          "address_line_2": "Floor 6",
          "admin_area_1": "CA",
          "admin_area_2": "San Francisco",
          "country_code": "US",
          "postal_code": "94107"
        },
        "name": {
          "full_name": "John Doe"
        }
      },

PS：项目在VB.NET 4.6.1（网页表单）

Answer 1

Dim 响应 = 等待 PayPalClient.client().Execute(request)

这里的response是什么？

您能否在PayPalClient.client().Execute(request)进一步调试该值

PayPal 通过网络发送 JSON。 因此，您似乎正在接收 JSON，它被转换为一个对象，然后您正在该对象上调用一个返回 JSON 的函数。

我不确定为什么在您调用该特定函数时会给出错误的 JSON，但我确实知道来自 PayPal 的原始 JSON 可能是完整的。