Authorize and Capture PayPal Order - paypal

Question

I am trying to integrate PayPal Checkout SDK into my application.
I create the request like this:
protected int doPaypalOrderWithCustomer(PayPalPurchase purchase, Customer customer) throws PayPalException {
PayPalClient client = new PayPalClient();
// Creating an order
HttpResponse<Order> orderResponse = null;
try{
orderResponse = client.createCustomerOrder("Order", purchase.getTotalCheckoutCost(), 1, customer);
String orderId = "";
log.info("Creating Order...");
if(orderResponse.statusCode() == 201){
orderId = orderResponse.result().id();
log.info("Order ID: " + orderId);
log.info("Links:");
for(LinkDescription link : orderResponse.result().links()){
log.info(link.rel() + ": " + link.href());
if("approve".equalsIgnoreCase(link.rel())){
log.info("Request Approved");
ServletActionContext.getResponse().sendRedirect(link.href());
break;
}// end if
}// end for
}// end if
log.info("Created Successfully");
}catch(Exception e){
throw new PayPalException("Creating a PayPal order failed. Message is: " + e.getMessage(), e);
}finally{
if(null != orderResponse){
log.info("Order response status code is: " + String.valueOf(orderResponse.statusCode()));
}else{
log.info("Order response is null.");
}// end if/else
}// end try/catch/finally
return orderResponse.statusCode();
}// end doPaypalOrderWithCustomer
The second method is:
public HttpResponse<Order> createCustomerOrder(String desc, double cost, int quantity, Customer customer) throws Exception {
log.debug("Entering createCustomerOrder");
if(log.isDebugEnabled()){
log.debug("Method to create order with complete payload");
log.debug("Entry parameters are: desc=" + String.valueOf(desc) + ", cost=" + String.valueOf(cost) + ", quantity=" + String.valueOf(quantity) + ", Customer=" + String.valueOf(customer));
}// end if
double individualCost = cost / quantity;
NumberFormat format = NumberFormat.getNumberInstance();
format.setMaximumFractionDigits(2);
format.setMinimumFractionDigits(2);
OrdersCreateRequest request = new OrdersCreateRequest();
request.header("prefer", "return=representation");
OrderRequest orderRequest = new OrderRequest();
orderRequest.checkoutPaymentIntent("CAPTURE");
Payer payer = new Payer();
payer.email(customer.getEmail());
PhoneWithType phoneWithType = new PhoneWithType();
Phone phone = new Phone();
String phoneNumber = customer.getPhoneNo().replace("(", "");
phoneNumber = customer.getPhoneNo().replace(")", "");
phoneNumber = customer.getPhoneNo().replace("-", "");
phoneNumber = phoneNumber.replaceAll("\\D+", "");
phone.nationalNumber(phoneNumber);
phoneWithType.phoneNumber(phone);
payer.phoneWithType(phoneWithType);
orderRequest.payer(payer);
ApplicationContext applicationContext = new ApplicationContext() //
.brandName("LLC")//
.landingPage("BILLING")//
.cancelUrl(bundle.getString("RESPONSE_URL") + "?t=c")//
.returnUrl(bundle.getString("RESPONSE_URL") + "?t=r")//
.userAction("PAY_NOW").shippingPreference("NO_SHIPPING");
log.info("Method call to orderRequest.applicationContext(applicationContext)");
orderRequest.applicationContext(applicationContext);
List<PurchaseUnitRequest> purchaseUnitRequests = new ArrayList<>();
PurchaseUnitRequest purchaseUnitRequest = new PurchaseUnitRequest()//
.referenceId("PUHF")//
.description("Digital Content")//
.customId("CUST-DigitalContent")//
.softDescriptor("DigitalContent")//
.amountWithBreakdown(new AmountWithBreakdown()//
.currencyCode("USD")//
.value(format.format(cost))//
.amountBreakdown(new AmountBreakdown()//
.itemTotal(new Money()//
.currencyCode("USD")//
.value(format.format(cost)))//
.shipping(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.handling(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.taxTotal(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.shippingDiscount(new Money()//
.currencyCode("USD")//
.value("0.00"))))
.items(new ArrayList<Item>(){
private static final long serialVersionUID = 1L;
{
add(new Item()//
.name(desc)//
.description(desc)//
.sku("sku01").//
unitAmount(new Money()//
.currencyCode("USD")//
.value(format.format(individualCost)))//
.tax(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.quantity(String.valueOf(quantity))//
.category("DIGITAL_GOODS"));
}
});
purchaseUnitRequests.add(purchaseUnitRequest);
orderRequest.purchaseUnits(purchaseUnitRequests);
request.requestBody(orderRequest);
HttpResponse<Order> response = client().execute(request);
if(response.statusCode() == 201){
for(com.paypal.orders.LinkDescription link : response.result().links()){
log.info(link.rel() + ": " + link.href() + "; Call Type: " + link.method());
}// end for
log.info("Total Amount: " + response.result().purchaseUnits().get(0).amountWithBreakdown().currencyCode() + " " + response.result().purchaseUnits().get(0).amountWithBreakdown().value());
log.info(new JSONObject(new Json().serialize(response.result())).toString(4));
}// end if
if(log.isDebugEnabled()){
log.debug("Return value is: response=" + String.valueOf(response));
}// end if
log.debug("Exiting createCustomerOrder");
return response;
}// end createCustomerOrder
Using the sandbox I am forwarded to PayPal. I follow the steps to PAY for the purchase. I know I have to CAPTURE the order but I can't figure out how. Upon redirect from PAYPAL I am saving the purchase to the database. The problem is PAYPAL is forwarding to my site like the payment was made. When in fact there is nothing in PAYPAL indicating a payment.
I am currently using the checkout.jar
Is there a way to do this without using javascript? I don't want to have to complete restructure the application.

Answer 1

The payment does not complete at PayPal. For redirect integrations, after the return to your site you need to capture the order and show the result (success/thank you, or failure/try again). The URL will contain the necessary IDs for capture.
Current integrations don't use any redirects. At all. (API responses have redirect URLs for old websites using such an integration pattern)
Instead, create two routes on your server for the create order and capture order APIs, respectively. The capture route must take an id as input (path or body parameter), so it knows which to capture. Both routes should return/output only JSON data, no HTML or text.
Pair those two routes with the following approval flow: https://developer.paypal.com/demo/checkout/#/pattern/server

Answer 2

After several weeks of trial and error, I finally got the js free PayPal implementation working.
There are 3 steps necessary to complete a PayPal Transaction.
Step 1. Create The Order. This step will take the customer to the PayPal site.
Class Variables: private PayPalClient client = new PayPalClient(); private PayPalHttpClient hClient = new PayPalHttpClient(client.getEnvironment());
protected int doPaypalOrderWithCustomer(PayPalPurchase purchase, Customer customer) throws PayPalException {
log.info("ENVIRONMENT: " + String.valueOf(client.getEnvironment()));
orderResponse = null;
try{
orderId = "";
// Creating an order payload
OrdersCreateRequest request = new OrdersCreateRequest();
// Build PayPal Request Body
request = client.createCustomerOrder("Company Order", purchase.getTotalCheckoutCost(), 1, customer);
// Create Order
orderResponse = hClient.execute(request);
log.info("Creating Order...");
if(orderResponse.statusCode() == 201){
log.info("Order with Complete Payload: ");
log.info("Status Code: " + orderResponse.statusCode());
log.info("Status: " + orderResponse.result().status());
log.info("Order ID: " + orderResponse.result().id());
log.info("Intent: " + orderResponse.result().checkoutPaymentIntent());
log.info("Links: ");
for(LinkDescription link : orderResponse.result().links()){
log.info("\t" + link.rel() + ": " + link.href() + "\tCall Type: " + link.method());
}// end for
log.info("Total Amount: " + orderResponse.result().purchaseUnits().get(0).amountWithBreakdown().currencyCode() + " " + orderResponse.result().purchaseUnits().get(0).amountWithBreakdown().value());
log.info("Full response body:");
log.info("Authorized Successfully\n");
orderId = orderResponse.result().id();
log.info("PURCHASE UNIT ORDER ID: " + orderId);
for(LinkDescription link : orderResponse.result().links()){
String check = link.rel();
log.info(link.rel() + ": " + link.href());
if(check.equalsIgnoreCase("approve")){
log.info("Request Approved");
ServletActionContext.getResponse().sendRedirect(link.href());
break;
}else{
log.info("CURRENT LINK: " + link.rel() + " NOT APPROVED");
}// end if
}// end for
sessionMap.put("orderId", orderId);
}// end if
log.info("Created Successfully");
}catch(Exception e){
throw new PayPalException("Creating a PayPal order failed. Message is: " + e.getMessage(), e);
}finally{
if(null != orderResponse){
log.info("Order response status code is: " + String.valueOf(orderResponse.statusCode()));
}else{
log.info("Order response is null.");
}// end if/else
}// end try/catch/finally
return orderResponse.statusCode();
}// end doPaypalOrderWithCustomer
public OrdersCreateRequest createCustomerOrder(String desc, double cost, int quantity, Customer customer) throws Exception {
log.debug("Entering createCustomerOrder");
if(log.isDebugEnabled()){
log.debug("Method to create order with complete payload");
log.debug("Entry parameters are: desc=" + String.valueOf(desc) + ", cost=" + String.valueOf(cost) + ", quantity=" + String.valueOf(quantity) + ", Customer=" + String.valueOf(customer));
}// end if
double individualCost = cost / quantity;
NumberFormat format = NumberFormat.getNumberInstance();
format.setMaximumFractionDigits(2);
format.setMinimumFractionDigits(2);
OrdersCreateRequest request = new OrdersCreateRequest();
request.header("prefer", "return=representation");
OrderRequest orderRequest = new OrderRequest();
orderRequest.checkoutPaymentIntent("AUTHORIZE");// This must be AUTHORIZE for the 3 step process
Payer payer = new Payer();
payer.email(customer.getEmail());
PhoneWithType phoneWithType = new PhoneWithType();
Phone phone = new Phone();
String phoneNumber = customer.getPhoneNo().replace("(", "");
phoneNumber = customer.getPhoneNo().replace(")", "");
phoneNumber = customer.getPhoneNo().replace("-", "");
phoneNumber = phoneNumber.replaceAll("\\D+", "");
phone.nationalNumber(phoneNumber);
phoneWithType.phoneNumber(phone);
payer.phoneWithType(phoneWithType);
orderRequest.payer(payer);
ApplicationContext applicationContext = new ApplicationContext() //
.brandName("Company, LLC")//
.landingPage("BILLING")//
.cancelUrl(bundle.getString("RESPONSE_URL") + "?t=c")//
.returnUrl(bundle.getString("RESPONSE_URL") + "?t=r")//
.userAction("CONTINUE").shippingPreference("NO_SHIPPING");
orderRequest.applicationContext(applicationContext);
List<PurchaseUnitRequest> purchaseUnitRequests = new ArrayList<>();
PurchaseUnitRequest purchaseUnitRequest = new PurchaseUnitRequest()//
.referenceId("PUHF")//
.description("Digital Content")//
.customId("CUST-DigitalContent")//
.softDescriptor("DigitalContent")//
.amountWithBreakdown(new AmountWithBreakdown()//
.currencyCode("USD")//
.value(format.format(cost))//
.amountBreakdown(new AmountBreakdown()//
.itemTotal(new Money()//
.currencyCode("USD")//
.value(format.format(cost)))//
.shipping(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.handling(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.taxTotal(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.shippingDiscount(new Money()//
.currencyCode("USD")//
.value("0.00"))))
.items(new ArrayList<Item>(){
private static final long serialVersionUID = 1L;
{
add(new Item()//
.name(desc)//
.description(desc)//
.sku("sku01").//
unitAmount(new Money()//
.currencyCode("USD")//
.value(format.format(individualCost)))//
.tax(new Money()//
.currencyCode("USD")//
.value("0.00"))//
.quantity(String.valueOf(quantity))//
.category("DIGITAL_GOODS"));
}
}).shippingDetail(new ShippingDetail()//
.name(new Name()//
.fullName(customer.getFirstNm() + " " + customer.getLastNm()))//
.addressPortable(new AddressPortable()//
.addressLine1(customer.getAddress())//
.addressLine2(customer.getAddress2())//
.adminArea1(customer.getState())//
.adminArea2(customer.getCity())//
.postalCode(customer.getZipCode())//
.countryCode("US")));
purchaseUnitRequests.add(purchaseUnitRequest);
orderRequest.purchaseUnits(purchaseUnitRequests);
request.requestBody(orderRequest);
HttpResponse<Order> response = client().execute(request);
if(response.statusCode() == 201){
for(com.paypal.orders.LinkDescription link : response.result().links()){
log.info(link.rel() + ": " + link.href() + "; Call Type: " + link.method());
}// end for
log.info("Total Amount: " + response.result().purchaseUnits().get(0).amountWithBreakdown().currencyCode() + " " + response.result().purchaseUnits().get(0).amountWithBreakdown().value());
log.info(new JSONObject(new Json().serialize(response.result())).toString(4));
}// end if
if(log.isDebugEnabled()){
log.debug("Return value is: response=" + String.valueOf(request));
}// end if
log.debug("Exiting createCustomerOrder");
return request;
}// end createCustomerOrder
Step 2: We Approve the order and get an authorized order id from PayPal.
public String approve() throws Exception {
log.debug("Entering approve method.");
log.trace("This method is used to approce purchases Post PayPal redirect.");
log.info("Authorizing Order...");
HttpServletRequest request = ServletActionContext.getRequest();
String cancel = request.getParameter("t");
log.info("Parameter being returned from PayPal: " + String.valueOf(cancel));
if(cancel.equalsIgnoreCase("c")){
payPalCancel = true;
if(null != sessionMap.get("purchase")){
sessionMap.remove("purchase");
}// end if
if(null != sessionMap.get("cartCount")){
sessionMap.put("cartCount", 0);
}// end if
setCartCount(0);
if(null != sessionMap.get("images")){
sessionMap.remove("images");
}// end if
setPayPalCancel(true);
return INPUT;
}else{
if(null != sessionMap.get("orderId")){
orderId = (String) sessionMap.get("orderId");
}// end if
log.info("Order ID: " + String.valueOf(orderId));
OrdersAuthorizeRequest orderAuthorizeRequest = new OrdersAuthorizeRequest(orderId);
orderAuthorizeRequest.requestBody(new OrderRequest());
orderResponse = hClient.execute(orderAuthorizeRequest);
if(orderResponse.statusCode() == 201){
authOrderId = orderResponse.result().purchaseUnits().get(0).payments().authorizations().get(0).id();
log.info("AUTHORIZED ORDER ID: " + authOrderId);
}// end if
sessionMap.put("authOrderId", authOrderId);
log.debug("Exiting approve");
}// end if/else
return SUCCESS;
}// end approve
Step 3: As the developer we must Capture that approved order. This is the final step.
public String capture() throws Exception {
log.debug("Entering capture method.");
log.trace("This method is used to save capture Payment.");
// Capturing authorized order
if(null != sessionMap.get("authOrderId")){
authOrderId = (String) sessionMap.get("authOrderId");
}// end if
log.info("Authorized Order ID: " + String.valueOf(authOrderId));
log.info("Capturing Order...");
setCaptured(true);
HttpResponse<Capture> captureOrderResponse = new CaptureOrder().captureOrder(authOrderId, true);
if(captureOrderResponse.statusCode() == 201){
log.info("Captured Successfully");
log.info("Status Code: " + captureOrderResponse.statusCode());
log.info("Status: " + captureOrderResponse.result().status());
log.info("Capture ID: " + captureOrderResponse.result().id());
log.info("Links: ");
for(com.paypal.payments.LinkDescription link : captureOrderResponse.result().links()){
log.info("\t" + link.rel() + ": " + link.href() + "\tCall Type: " + link.method());
}// end for
}// end if
log.debug("Exiting capture");
return SUCCESS;
}// end capture
Thanks to everyone who helped. I'm new at this and may have done somethings wrong, but I was finally able to get it to work.