페이팔 적응 지불 API를 사용하면 IPN에 트랜잭션 ID 대신 paykey가 있으므로 코드에서 사용하십시오. 여기
실제 IPN은
{"payment_request_date":"Sun Jun 24 06:12:20 PDT 2012",
"return_url":"http://redacted/paypal/transactions/3?status=completed",
"fees_payer":"EACHRECEIVER",
"ipn_notification_url":"http://redacted/paypal/notifications",
"sender_email":"redacted",
"verify_sign":"AFcWxVredacted",
"test_ipn":"1",
"transaction[0].id_for_sender_txn":"redacted",
"transaction[0].receiver":"redacted",
"cancel_url":"http://redacted/paypal/transactions/3?status=canceled",
"transaction[0].is_primary_receiver":"false",
"pay_key":"AP-redacted",
"action_type":"PAY",
"transaction[0].id":"redacted",
"transaction[0].status":"Completed",
"transaction[0].paymentType":"SERVICE",
"transaction[0].status_for_sender_txn":"Completed",
"transaction[0].pending_reason":"NONE",
"transaction_type":"Adaptive Payment PAY",
"transaction[0].amount":"USD 1.00",
"status":"COMPLETED",
"log_default_shipping_address_in_transaction":"false",
"charset":"windows-1252",
"notify_version":"UNVERSIONED",
"reverse_all_parallel_payments_on_error":"true"}
JSON으로 포맷