PAYPAL IPN 自定义字段丢失 [英] PAYPAL IPN custom field missing
问题描述
我在使用 API 流程和沙箱实施贝宝定期付款时遇到了麻烦.我成功创建了订阅按钮并将用户重定向到贝宝快速结账页面.但是paypal生成的一些IPN中缺少自定义字段，我真的需要这个字段.
I'm facing troubles implementing paypal recurring payment with the API process and the sandbox. I succeed to create the subscription button and redirect the user to the paypal express checkout page. But the custom field is missing in some IPN generated by paypal and I really need this field.
这是我在生成订阅按钮时发送的请求:
Here are the requests I send while generating the subscription button:
METHOD=SetExpressCheckout
&VERSION=94.0
&PWD=123456
&USER=myEmail@biz.com
&SIGNATURE=mySignature
&PAYMENTREQUEST_0_AMT=5.00
&PAYMENTREQUEST_0_PAYMENTACTION=Sale
&PAYMENTREQUEST_0_CURRENCYCODE=EUR
&RETURNURL=http%3A%2F%2Fwww.myWebSite.com?ok
&CANCELURL=http%3A%2F%2Fwww.myWebSite.com?ko
&L_BILLINGTYPE0=RecurringPayments
&L_BILLINGAGREEMENTDESCRIPTION0=test+paypal
&REQCONFIRMSHIPPING=0
&NOSHIPPING=1
&L_PAYMENTREQUEST_0_ITEMCATEGORY0=Digital
&L_PAYMENTREQUEST_0_NAME0=test+paypal
&L_PAYMENTREQUEST_0_AMT0=5.00
&L_PAYMENTREQUEST_0_QTY0=1
&PAYMENTREQUEST_0_CUSTOM=custom_var1%3Dvalue1%7Ccustom_var2%3Dvalue2
用户确认交易后，他将返回我的网站，我必须验证信息并创建重复配置文件.以下是我的要求:
After the user has confirmed the transaction, he is coming back to my website and I have to verify the informations and to create the recurring profil. Here are the requests I do :
METHOD=GetExpressCheckoutDetails
&VERSION=94.0
&PWD=123456
&USER=myEmail@biz.com
&SIGNATURE=mySignature
&TOKEN=theToken
METHOD=CreateRecurringPaymentsProfile
&VERSION=94.0
&PWD=123456
&USER=myEmail@biz.com
&SIGNATURE=mySignature
&TOKEN=theToken
&AMT=5.00
&CURRENCYCODE=EUR
&PROFILESTARTDATE=2013-02-04T15%3A16%3A24%2B01%3A00
&BILLINGPERIOD=Day
&BILLINGFREQUENCY=1
&DESC=test+paypal
METHOD=DoExpressCheckoutPayment
&VERSION=94.0
&PWD=123456
&USER=myEmail@biz.com
&SIGNATURE=mySignature
&TOKEN=theToken
&PAYERID=JZUVX4TAHRHRU
&PAYMENTREQUEST_0_PAYMENTACTION=Sale
&PAYMENTREQUEST_0_AMT=5.00
&PAYMENTREQUEST_0_CURRENCYCODE=EUR
&PAYMENTREQUEST_0_NOTIFYURL=http%3A%2F%2Fwww.myWebSite.com?notify
&PAYMENTREQUEST_0_CUSTOM=custom_var1%3Dvalue1%7Ccustom_var2%3Dvalue2
这样做后，我收到了这些 IPN :
After doing this I receive these IPN :
Array
(
[transaction_subject] => test paypal
[payment_date] => 06:01:52 Feb 04, 2013 PST
[txn_type] => express_checkout
[last_name] => numerik
[residence_country] => FR
[item_name] =>
[payment_gross] =>
[mc_currency] => EUR
[payment_type] => instant
[protection_eligibility] => Ineligible
[verify_sign] => myVerifySign
[payer_status] => verified
[test_ipn] => 1
[tax] => 0.00
[payer_email] => myEmail@per.com
[txn_id] => 6XC11065S3796804E
[quantity] => 1
[receiver_email] => myEmail@biz.com
[first_name] => buyer
[payer_id] => myPayerId
[receiver_id] => myReceiverId
[item_number] =>
[handling_amount] => 0.00
[payment_status] => Completed
[payment_fee] =>
[mc_fee] => 0.42
[shipping] => 0.00
[mc_gross] => 5.00
[custom] => custom_var1=value1|custom_var2=value2
[charset] => windows-1252
[notify_version] => 3.7
[ipn_track_id] => ab76ea3421261
)
Array
(
[payment_cycle] => Daily
[txn_type] => recurring_payment_profile_created
[last_name] => numerik
[next_payment_date] => 02:00:00 Feb 04, 2013 PST
[residence_country] => FR
[initial_payment_amount] => 0.00
[currency_code] => EUR
[time_created] => 06:01:47 Feb 04, 2013 PST
[verify_sign] => myVerifySign
[period_type] => Regular
[payer_status] => verified
[test_ipn] => 1
[tax] => 0.00
[payer_email] => myEmail@per.com
[first_name] => buyer
[receiver_email] => myEmail@biz.com
[payer_id] => myPayerId
[product_type] => 1
[shipping] => 0.00
[amount_per_cycle] => 5.00
[profile_status] => Active
[charset] => windows-1252
[notify_version] => 3.7
[amount] => 5.00
[outstanding_balance] => 0.00
[recurring_payment_id] => myRecurringPaymentId
[product_name] => test paypal
[ipn_track_id] => a8adfdf8b61d3
)
正如您在第一个 IPN 中看到的，自定义字段可用，但在第二个 IPN 中不可用.有谁知道我在检索第二个 IPN 中的自定义字段时缺少什么?
As you can see in the 1st IPN the field custom is available but not in the second one. Does anyone know what I'm missing for retrieving the custom field in the 2nd IPN ?
推荐答案
您的 DoExpressCheckoutPayment 请求包含自定义参数，这就是您为该交易取回它的原因.您的 CreateRecurringPaymentsProfile 请求未包含自定义参数，因此不会返回.
Your DoExpressCheckoutPayment request includes the custom parameter which is why you're getting it back for that transaction. Your CreateRecurringPaymentsProfile request does not have a custom parameter included, so it would not come back.
也就是说，自定义参数似乎不适用于 CRPP，因此您需要将数据保存在本地，并在 CRPP 请求的 PROFILEREFERENCE 参数中包含您的本地记录 ID.这样它就会像 Matt Cole 建议的那样作为 rp_invoice_id 在 IPN 中返回，您可以相应地使用该记录 ID 从数据库中提取自定义数据.
That said, it doesn't look like the custom parameter is available to CRPP so you'll need to save your data locally and include your local record ID in the PROFILEREFERENCE paramter of your CRPP request. This way it will come back in IPN as rp_invoice_id like Matt Cole suggested, and you can pull your custom data back out of your database using that record ID accordingly.
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