I was trying to implement PayPal into my java application, however, I was confused about multiple things.
First, how and where would you get the payer ID? For example, I have the following code so far:
Payer Payer = new Payer();
Payer.setPaymentMethod("paypal");
// Redirect URLs
RedirectUrls redirectUrls = new RedirectUrls();
redirectUrls.setCancelUrl("http://localhost:3000/cancel");
redirectUrls.setReturnUrl("http://localhost:3000/return");
// Set Payment Details Object
Details details = new Details();
details.setShipping(shipping);
details.setSubtotal(subtotal);
details.setTax(tax);
// Set Payment amount
Amount amount = new Amount();
amount.setCurrency("USD");
amount.setTotal(totalPrice);
amount.setDetails(details);
// Set Transaction information
Transaction transaction = new Transaction();
transaction.setAmount(amount);
transaction.setDescription("Shoe Raffle Ticket by Coppers Odds");
List<Transaction> crunchifyTransactions = new ArrayList<Transaction>();
crunchifyTransactions.add(transaction);
// Add Payment details
Payment payment = new Payment();
// Set Payment intent to authorize
payment.setIntent("authorize");
payment.setPayer(Payer);
payment.setTransactions(crunchifyTransactions);
payment.setRedirectUrls(redirectUrls);
// Pass the clientID, secret and mode. The easiest, and most widely used option.
APIContext apiContext = new APIContext(clientID, secret, "sandbox");
// List<String> scopes = new ArrayList<String>() {/**
// *
// */
// private static final long serialVersionUID = 1L;
//
// {
// /**
// * 'openid'
// * 'profile'
// * 'address'
// * 'email'
// * 'phone'
// * 'https://uri.paypal.com/services/paypalattributes'
// * 'https://uri.paypal.com/services/expresscheckout'
// * 'https://uri.paypal.com/services/invoicing'
// */
// add("openid");
// add("profile");
// add("email");
// }};
//
// String redirectUrl = Session.getRedirectURL("UserConsent", scopes, apiContext);
// System.out.println(redirectUrl);
Payment myPayment = null;
String authorizationId = null;
try {
myPayment = payment.create(apiContext);
System.out.println("createdPayment Object Details ==> " + myPayment.toString());
// Identifier of the payment resource created
payment.setId(myPayment.getId());
PaymentExecution PaymentExecution = new PaymentExecution();
// Set your PayerID. The ID of the Payer, passed in the `return_url` by PayPal.
PaymentExecution.setPayerId(" ");
// This call will fail as user has to access Payment on UI. Programmatically
// there is no way you can get Payer's consent.
Payment createdAuthPayment = payment.execute(apiContext, PaymentExecution);
// Transactional details including the amount and item details.
Authorization Authorization = createdAuthPayment.getTransactions().get(0).getRelatedResources()
.get(0).getAuthorization();
authorizationId = Authorization.getId();
Edit_JSON.edit(currentShoe, amountofTickets + Edit_JSON.getOriginal(currentShoe));
LocalDate localDate = LocalDate.now();
com.pulsebeat02.main.gui.windows.payment.Payment paymentFinal = new com.pulsebeat02.main.gui.windows.payment.Payment("Bought Raffle Tickets",
DateTimeFormatter.ofPattern("yyy/MM/dd").format(localDate),
"Bought " + amountofTickets + " ticket(s)", "Bought with Paypal", price, null, true, account);
ManagePayments.allPayments.add(paymentFinal);
} catch (PayPalRESTException e1) {
// The "standard" error output stream. This stream is already open and ready to
// accept output data.
Logger.LOG.error("Payment Exception");
System.err.println(e1.getDetails());
}
The PayerID here is left blank, and causes the error ERROR com.paypal.base.HttpConnection - Response code: 400
Also, I am still confused with how the redirect urls and approval urls work. For example, this is the payment JSON file I got from executing the code:
{
"id": "PAYID-LUF4ZQI88510624KV359214L",
"intent": "authorize",
"payer": {
"payment_method": "paypal"
},
"transactions": [
{
"related_resources": [],
"amount": {
"currency": "USD",
"total": "1.30",
"details": {
"subtotal": "0.00",
"shipping": "0.00",
"tax": "0.00"
}
},
"description": "Shoe Raffle Ticket by Coppers Odds"
}
],
"state": "created",
"create_time": "2019-06-20T18:13:21Z",
"links": [
{
"href": "https://api.sandbox.paypal.com/v1/payments/payment/PAYID-LUF4ZQI88510624KV359214L",
"rel": "self",
"method": "GET"
},
{
"href": "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd\u003d_express-checkout\u0026token\u003dEC-31C40815LT657700L",
"rel": "approval_url",
"method": "REDIRECT"
},
{
"href": "https://api.sandbox.paypal.com/v1/payments/payment/PAYID-LUF4ZQI88510624KV359214L/execute",
"rel": "execute",
"method": "POST"
}
]
}
How would I use the JSON file to redirect the buyer to the Paypal website and make sure they accept the payment so they can pay?
(I seeked help here because I found the doc to be deprecated and confusing)
