File History: src/main/java/com/paymentlink/service/StripePaymentService.java

File Content at Commit 188fc92

      
      package com.paymentlink.service;
    
      import com.stripe.exception.StripeException;
    
      import com.stripe.model.PaymentIntent;
    
      import com.stripe.model.checkout.Session;
    
      import com.stripe.param.PaymentIntentCreateParams;
    
      import com.stripe.param.checkout.SessionCreateParams;
    
      import com.paymentlink.model.entity.Order;
    
      import com.paymentlink.model.entity.Product;
    
      import com.paymentlink.repository.OrderRepository;
    
      import org.slf4j.Logger;
    
      import org.slf4j.LoggerFactory;
    
      import org.springframework.beans.factory.annotation.Value;
    
      import org.springframework.stereotype.Service;
    
      @Service
    
      public class StripePaymentService {
    
          private static final Logger logger = LoggerFactory.getLogger(StripePaymentService.class);
    
          private final CurrencyService currencyService;
    
          private final OrderRepository orderRepository;
    
          @Value("${stripe.publishable.key}")
    
          private String publishableKey;
    
          @Value("${stripe.success.url:http://localhost:8080/order-confirmation}")
    
          private String successUrl;
    
          @Value("${stripe.cancel.url:http://localhost:8080/checkout}")
    
          private String cancelUrl;
    
          public StripePaymentService(CurrencyService currencyService, OrderRepository orderRepository) {
    
              this.currencyService = currencyService;
    
              this.orderRepository = orderRepository;
    
          }
    
          /**
    
           * Create a PaymentIntent for a payment (legacy method)
    
           */
    
          public PaymentIntent createPaymentIntent(long amount, String currency) throws StripeException {
    
              logger.info("Creating Stripe PaymentIntent: amount={}, currency={}", amount, currency);
    
              PaymentIntentCreateParams params = PaymentIntentCreateParams.builder()
    
                      .setAmount(amount)
    
                      .setCurrency(currency.toLowerCase())
    
                      .addPaymentMethodType("card")
    
                      .build();
    
              PaymentIntent paymentIntent = PaymentIntent.create(params);
    
              logger.info("Created PaymentIntent: {}", paymentIntent.getId());
    
              return paymentIntent;
    
          }
    
          /**
    
           * Create a Checkout Session with multi-currency support
    
           * CRITICAL: Charges in target currency, not USD
    
           */
    
          public String createCheckoutSession(Order order, String targetCurrency) throws StripeException {
    
              // Validate currency is supported by Stripe
    
              if (!currencyService.isCurrencySupported(targetCurrency)) {
    
                  logger.warn("Currency {} not supported by Stripe, falling back to USD", targetCurrency);
    
                  targetCurrency = "USD";
    
              }
    
              // Make targetCurrency effectively final for lambda usage
    
              final String finalTargetCurrency = targetCurrency;
    
              // Convert total to target currency
    
              Long convertedAmount = currencyService.convertPrice(
    
                      order.getTotal(),
    
                      order.getCurrency() != null ? order.getCurrency() : "USD",
    
                      finalTargetCurrency
    
              );
    
              // Store conversion details in order
    
              order.setCurrency(finalTargetCurrency);
    
              order.setOriginalCurrency(order.getCurrency() != null ? order.getCurrency() : "USD");
    
              order.setOriginalAmount(order.getTotal());
    
              order.setExchangeRate(currencyService.getRate(
    
                      order.getOriginalCurrency(),
    
                      finalTargetCurrency
    
              ));
    
              orderRepository.save(order);
    
              // Build line items from order items
    
              SessionCreateParams.Builder paramsBuilder = SessionCreateParams.builder()
    
                      .setMode(SessionCreateParams.Mode.PAYMENT)
    
                      .setSuccessUrl(successUrl + "?orderId=" + order.getOrderId())
    
                      .setCancelUrl(cancelUrl + "?orderId=" + order.getOrderId())
    
                      .putMetadata("orderId", order.getOrderId())
    
                      .putMetadata("originalCurrency", order.getOriginalCurrency())
    
                      .putMetadata("originalAmount", String.valueOf(order.getOriginalAmount()));
    
              // Add line items for each product in the order
    
              order.getItems().forEach(item -> {
    
                  // Convert item price to target currency
    
                  Long itemPrice = currencyService.convertPrice(
    
                          item.getPrice(),
    
                          order.getOriginalCurrency(),
    
                          finalTargetCurrency
    
                  );
    
                  SessionCreateParams.LineItem lineItem = SessionCreateParams.LineItem.builder()
    
                          .setPriceData(
    
                                  SessionCreateParams.LineItem.PriceData.builder()
    
                                          .setCurrency(finalTargetCurrency.toLowerCase()) // Stripe requires lowercase
    
                                          .setUnitAmount(itemPrice) // Amount in cents
    
                                          .setProductData(
    
                                                  SessionCreateParams.LineItem.PriceData.ProductData.builder()
    
                                                          .setName(item.getProductName() != null ? item.getProductName() : "Product")
    
                                                          .build()
    
                                          )
    
                                          .build()
    
                          )
    
                          .setQuantity((long) item.getQuantity())
    
                          .build();
    
                  paramsBuilder.addLineItem(lineItem);
    
              });
    
              SessionCreateParams params = paramsBuilder.build();
    
              Session session = Session.create(params);
    
              logger.info("Created Stripe Checkout Session: {} for order: {} in currency: {} (converted from {} {})",
    
                      session.getId(), order.getOrderId(), finalTargetCurrency, order.getOriginalAmount(), order.getOriginalCurrency());
    
              return session.getUrl();
    
          }
    
          /**
    
           * Retrieve a PaymentIntent
    
           */
    
          public PaymentIntent retrievePaymentIntent(String paymentIntentId) throws StripeException {
    
              return PaymentIntent.retrieve(paymentIntentId);
    
          }
    
          /**
    
           * Get publishable key (for frontend)
    
           */
    
          public String getPublishableKey() {
    
              return publishableKey;
    
          }
    
          /**
    
           * Check if payment intent is successful
    
           */
    
          public boolean isPaymentSuccessful(PaymentIntent paymentIntent) {
    
              return "succeeded".equals(paymentIntent.getStatus());
    
          }
    
      }

Commits

Commit	Author	Date	Message	File SHA	Actions
`f0438c2`	<f69e50@finnacloud.com> 1766443042 +0300	12/22/2025, 10:37:22 PM	increment once more	`4f6261c`	View
`188fc92`	<f69e50@finnacloud.com> 1766442998 +0300	12/22/2025, 10:36:38 PM	increment	`4f6261c`	Hide
`4617f76`	<f69e50@finnacloud.com> 1766442953 +0300	12/22/2025, 10:35:53 PM	rename branch from main to master oops	`4f6261c`	View
`e6d1548`	<f69e50@finnacloud.com> 1766442769 +0300	12/22/2025, 10:32:49 PM	add initial test workflow file	`4f6261c`	View
`9c24ca4`	<f69e50@finnacloud.com> 1766442705 +0300	12/22/2025, 10:31:45 PM	add CI configuration and test script for Jenkins build	`4f6261c`	View
`690c1f6`	<f69e50@finnacloud.com> 1766368110 +0300	12/22/2025, 1:48:30 AM	initialize backend structure with controllers, DTOs, and configuration files	`4f6261c`	View

1	package com.paymentlink.service;
2
3	import com.stripe.exception.StripeException;
4	import com.stripe.model.PaymentIntent;
5	import com.stripe.model.checkout.Session;
6	import com.stripe.param.PaymentIntentCreateParams;
7	import com.stripe.param.checkout.SessionCreateParams;
8	import com.paymentlink.model.entity.Order;
9	import com.paymentlink.model.entity.Product;
10	import com.paymentlink.repository.OrderRepository;
11	import org.slf4j.Logger;
12	import org.slf4j.LoggerFactory;
13	import org.springframework.beans.factory.annotation.Value;
14	import org.springframework.stereotype.Service;
15
16	@Service
17	public class StripePaymentService {
18
19	private static final Logger logger = LoggerFactory.getLogger(StripePaymentService.class);
20
21	private final CurrencyService currencyService;
22	private final OrderRepository orderRepository;
23
24	@Value("${stripe.publishable.key}")
25	private String publishableKey;
26
27	@Value("${stripe.success.url:http://localhost:8080/order-confirmation}")
28	private String successUrl;
29
30	@Value("${stripe.cancel.url:http://localhost:8080/checkout}")
31	private String cancelUrl;
32
33	public StripePaymentService(CurrencyService currencyService, OrderRepository orderRepository) {
34	this.currencyService = currencyService;
35	this.orderRepository = orderRepository;
36	}
37
38	/**
39	* Create a PaymentIntent for a payment (legacy method)
40	*/
41	public PaymentIntent createPaymentIntent(long amount, String currency) throws StripeException {
42	logger.info("Creating Stripe PaymentIntent: amount={}, currency={}", amount, currency);
43
44	PaymentIntentCreateParams params = PaymentIntentCreateParams.builder()
45	.setAmount(amount)
46	.setCurrency(currency.toLowerCase())
47	.addPaymentMethodType("card")
48	.build();
49
50	PaymentIntent paymentIntent = PaymentIntent.create(params);
51	logger.info("Created PaymentIntent: {}", paymentIntent.getId());
52
53	return paymentIntent;
54	}
55
56	/**
57	* Create a Checkout Session with multi-currency support
58	* CRITICAL: Charges in target currency, not USD
59	*/
60	public String createCheckoutSession(Order order, String targetCurrency) throws StripeException {
61	// Validate currency is supported by Stripe
62	if (!currencyService.isCurrencySupported(targetCurrency)) {
63	logger.warn("Currency {} not supported by Stripe, falling back to USD", targetCurrency);
64	targetCurrency = "USD";
65	}
66
67	// Make targetCurrency effectively final for lambda usage
68	final String finalTargetCurrency = targetCurrency;
69
70	// Convert total to target currency
71	Long convertedAmount = currencyService.convertPrice(
72	order.getTotal(),
73	order.getCurrency() != null ? order.getCurrency() : "USD",
74	finalTargetCurrency
75	);
76
77	// Store conversion details in order
78	order.setCurrency(finalTargetCurrency);
79	order.setOriginalCurrency(order.getCurrency() != null ? order.getCurrency() : "USD");
80	order.setOriginalAmount(order.getTotal());
81	order.setExchangeRate(currencyService.getRate(
82	order.getOriginalCurrency(),
83	finalTargetCurrency
84	));
85	orderRepository.save(order);
86
87	// Build line items from order items
88	SessionCreateParams.Builder paramsBuilder = SessionCreateParams.builder()
89	.setMode(SessionCreateParams.Mode.PAYMENT)
90	.setSuccessUrl(successUrl + "?orderId=" + order.getOrderId())
91	.setCancelUrl(cancelUrl + "?orderId=" + order.getOrderId())
92	.putMetadata("orderId", order.getOrderId())
93	.putMetadata("originalCurrency", order.getOriginalCurrency())
94	.putMetadata("originalAmount", String.valueOf(order.getOriginalAmount()));
95
96	// Add line items for each product in the order
97	order.getItems().forEach(item -> {
98	// Convert item price to target currency
99	Long itemPrice = currencyService.convertPrice(
100	item.getPrice(),
101	order.getOriginalCurrency(),
102	finalTargetCurrency
103	);
104
105	SessionCreateParams.LineItem lineItem = SessionCreateParams.LineItem.builder()
106	.setPriceData(
107	SessionCreateParams.LineItem.PriceData.builder()
108	.setCurrency(finalTargetCurrency.toLowerCase()) // Stripe requires lowercase
109	.setUnitAmount(itemPrice) // Amount in cents
110	.setProductData(
111	SessionCreateParams.LineItem.PriceData.ProductData.builder()
112	.setName(item.getProductName() != null ? item.getProductName() : "Product")
113	.build()
114	)
115	.build()
116	)
117	.setQuantity((long) item.getQuantity())
118	.build();
119
120	paramsBuilder.addLineItem(lineItem);
121	});
122
123	SessionCreateParams params = paramsBuilder.build();
124	Session session = Session.create(params);
125
126	logger.info("Created Stripe Checkout Session: {} for order: {} in currency: {} (converted from {} {})",
127	session.getId(), order.getOrderId(), finalTargetCurrency, order.getOriginalAmount(), order.getOriginalCurrency());
128
129	return session.getUrl();
130	}
131
132	/**
133	* Retrieve a PaymentIntent
134	*/
135	public PaymentIntent retrievePaymentIntent(String paymentIntentId) throws StripeException {
136	return PaymentIntent.retrieve(paymentIntentId);
137	}
138
139	/**
140	* Get publishable key (for frontend)
141	*/
142	public String getPublishableKey() {
143	return publishableKey;
144	}
145
146	/**
147	* Check if payment intent is successful
148	*/
149	public boolean isPaymentSuccessful(PaymentIntent paymentIntent) {
150	return "succeeded".equals(paymentIntent.getStatus());
151	}
152	}
153
154

backend

File History: src/main/java/com/paymentlink/service/StripePaymentService.java

File Content at Commit 188fc92

Commits