在登录asp.net上检测到PayPal订阅取消

Question

I am building an asp.net web app that involves paypal subscriptions. I need to check if the user has cancelled on login is this possible and if so how? I have seen other posts on this subject but my situation is different since I'll be checking on login. I was thinking maybe I can do a batch dump of data from paypal nightly and check against that to set a flag on the users that cancelled. Not sure what the best way to do this is..

Answer 1

If you want to check whether the user has accepted or cancelled the agreement after logging to the PayPal then yes you can check this by using the Express Checkout Token . You need to call GetExpressCheckoutDetails API on the Token after the buyer log in to the PayPal account and look for the variable BILLINGAGREEMENTACCEPTEDSTATUS in the response .

BILLINGAGREEMENTACCEPTEDSTATUS=0 means buyer has not accepted the agreement or clicked on cancel after logging to the PayPal account .

BILLINGAGREEMENTACCEPTEDSTATUS=1 , means by has clicked on the "agree and continue" after logging to the PayPal .

I have included some sample response .

For rejection after log in :

NVP Response:
TOKEN=EC-0RC04801KU663840M
**BILLINGAGREEMENTACCEPTEDSTATUS=0**
CHECKOUTSTATUS=PaymentActionNotInitiated
TIMESTAMP=2014-09-14T14:54:43Z
CORRELATIONID=5cc68231a1b35
ACK=Success
VERSION=109.0
BUILD=12786467
EMAIL=XXXXXXXXXXXXXX
PAYERID=XXXXXXXXXXXX
PAYERSTATUS=verified
FIRSTNAME=Eshan Personal Test
LASTNAME=Account
COUNTRYCODE=US
CURRENCYCODE=USD
AMT=0.00
SHIPPINGAMT=0.00
HANDLINGAMT=0.00
TAXAMT=0.00
INSURANCEAMT=0.00
SHIPDISCAMT=0.00
PAYMENTREQUEST_0_CURRENCYCODE=USD
PAYMENTREQUEST_0_AMT=0.00
PAYMENTREQUEST_0_SHIPPINGAMT=0.00
PAYMENTREQUEST_0_HANDLINGAMT=0.00
PAYMENTREQUEST_0_TAXAMT=0.00
PAYMENTREQUEST_0_INSURANCEAMT=0.00
PAYMENTREQUEST_0_SHIPDISCAMT=0.00
PAYMENTREQUEST_0_INSURANCEOPTIONOFFERED=false
PAYMENTREQUEST_0_ADDRESSNORMALIZATIONSTATUS=None
PAYMENTREQUESTINFO_0_ERRORCODE=0 

For acceptance after log in :

NVP Response:
TOKEN=EC-1EX65013S71914041
PHONENUM=408-767-7151
**BILLINGAGREEMENTACCEPTEDSTATUS=1**
CHECKOUTSTATUS=PaymentActionNotInitiated
TIMESTAMP=2014-09-14T14:56:24Z
CORRELATIONID=aae4de7a4b356
ACK=Success
VERSION=109.0
BUILD=XXXXXXXXXXXXX
PAYERID=XXXXXXXXXXXXXX
PAYERSTATUS=verified
FIRSTNAME=Eshan Personal Test
LASTNAME=Account
COUNTRYCODE=US
SHIPTONAME=Eshan Personal Test Account
SHIPTOSTREET=cxas
SHIPTOSTREET2=asa
SHIPTOCITY=FL
SHIPTOSTATE=FL
SHIPTOZIP=95616
SHIPTOCOUNTRYCODE=US
SHIPTOCOUNTRYNAME=United States
ADDRESSSTATUS=Confirmed
CURRENCYCODE=USD
AMT=0.00
SHIPPINGAMT=0.00
HANDLINGAMT=0.00
TAXAMT=0.00
INSURANCEAMT=0.00
SHIPDISCAMT=0.00
PAYMENTREQUEST_0_CURRENCYCODE=USD
PAYMENTREQUEST_0_AMT=0.00
PAYMENTREQUEST_0_SHIPPINGAMT=0.00
PAYMENTREQUEST_0_HANDLINGAMT=0.00
PAYMENTREQUEST_0_TAXAMT=0.00
PAYMENTREQUEST_0_INSURANCEAMT=0.00
PAYMENTREQUEST_0_SHIPDISCAMT=0.00
PAYMENTREQUEST_0_INSURANCEOPTIONOFFERED=false
PAYMENTREQUEST_0_SHIPTONAME=Eshan Personal Test Account
PAYMENTREQUEST_0_SHIPTOSTREET=cxas
PAYMENTREQUEST_0_SHIPTOSTREET2=asa
PAYMENTREQUEST_0_SHIPTOCITY=FL
PAYMENTREQUEST_0_SHIPTOSTATE=FL
PAYMENTREQUEST_0_SHIPTOZIP=95616
PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE=US
PAYMENTREQUEST_0_SHIPTOCOUNTRYNAME=United States
PAYMENTREQUEST_0_ADDRESSSTATUS=Confirmed
PAYMENTREQUEST_0_ADDRESSNORMALIZATIONSTATUS=None
PAYMENTREQUESTINFO_0_ERRORCODE=0