[REFACTOR]: PaymentService 외부 API 호출 로직 분리

src/main/java/com/eatsfine/eatsfine/domain/payment/service/PaymentService.java

@@ -22,7 +22,6 @@
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
-import org.springframework.web.client.RestClient;
 
 import java.math.BigDecimal;
 import org.springframework.data.domain.PageRequest;
@@ -38,7 +37,7 @@ public class PaymentService {
 
         private final PaymentRepository paymentRepository;
         private final BookingRepository bookingRepository;
-        private final RestClient tossPaymentClient;
+        private final TossPaymentService tossPaymentService;
 
         @Transactional
         public PaymentResponseDTO.PaymentRequestResultDTO requestPayment(PaymentRequestDTO.RequestPaymentDTO dto) {
@@ -84,19 +83,14 @@ public PaymentResponseDTO.PaymentSuccessResultDTO confirmPayment(PaymentConfirmD
                 // 토스 API 호출
                 TossPaymentResponse response;
                 try {
-                        response = tossPaymentClient.post()
-                                        .uri("/v1/payments/confirm")
-                                        .body(dto)
-                                        .retrieve()
-                                        .body(TossPaymentResponse.class);
-
-                        if (response == null || !"DONE".equals(response.status())) {
-                                log.error("Toss Payment Confirmation Failed: Status is not DONE");
-                                payment.failPayment();
-                                throw new GeneralException(ErrorStatus._INTERNAL_SERVER_ERROR);
-                        }
+                        response = tossPaymentService.confirm(dto);
                 } catch (Exception e) {
-                        log.error("Toss Payment API Error", e);
+                        payment.failPayment();
+                        throw e;
+                }
+
+                if (response == null || !"DONE".equals(response.status())) {
+                        log.error("Toss Payment Confirmation Failed: Status is not DONE");
                         payment.failPayment();
                         throw new GeneralException(ErrorStatus._INTERNAL_SERVER_ERROR);
                 }
@@ -140,20 +134,10 @@ public PaymentResponseDTO.CancelPaymentResultDTO cancelPayment(String paymentKey
                                 .orElseThrow(() -> new PaymentException(PaymentErrorStatus._PAYMENT_NOT_FOUND));
 
                 // 토스 결제 취소 API 호출
-                TossPaymentResponse response;
-                try {
-                        response = tossPaymentClient.post()
-                                        .uri("/v1/payments/" + paymentKey + "/cancel")
-                                        .body(dto)
-                                        .retrieve()
-                                        .body(TossPaymentResponse.class);
-
-                        if (response == null || !"CANCELED".equals(response.status())) {
-                                log.error("Toss Payment Cancel Failed: {}", response);
-                                throw new GeneralException(ErrorStatus._INTERNAL_SERVER_ERROR);
-                        }
-                } catch (Exception e) {
-                        log.error("Toss Payment Cancel API Error", e);
+                TossPaymentResponse response = tossPaymentService.cancel(paymentKey, dto);
+
+                if (response == null || !"CANCELED".equals(response.status())) {
+                        log.error("Toss Payment Cancel Failed: {}", response);
                         throw new GeneralException(ErrorStatus._INTERNAL_SERVER_ERROR);
                 }
 

src/main/java/com/eatsfine/eatsfine/domain/payment/service/TossPaymentService.java

@@ -0,0 +1,48 @@
+package com.eatsfine.eatsfine.domain.payment.service;
+
+import com.eatsfine.eatsfine.domain.payment.dto.request.PaymentConfirmDTO;
+import com.eatsfine.eatsfine.domain.payment.dto.request.PaymentRequestDTO;
+import com.eatsfine.eatsfine.domain.payment.dto.response.TossPaymentResponse;
+import com.eatsfine.eatsfine.global.apiPayload.code.status.ErrorStatus;
+import com.eatsfine.eatsfine.global.apiPayload.exception.GeneralException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestClient;
+
+@Slf4j
+@Service
+public class TossPaymentService {
+
+    private final RestClient tossPaymentClient;
+
+    public TossPaymentService(@Qualifier("tossPaymentClient") RestClient tossPaymentClient) {
+        this.tossPaymentClient = tossPaymentClient;
+    }
+
+    public TossPaymentResponse confirm(PaymentConfirmDTO dto) {
+        try {
+            return tossPaymentClient.post()
+                    .uri("/v1/payments/confirm")
+                    .body(dto)
+                    .retrieve()
+                    .body(TossPaymentResponse.class);
+        } catch (Exception e) {
+            log.error("Toss Payment API Error", e);
+            throw new GeneralException(ErrorStatus._INTERNAL_SERVER_ERROR);
+        }
+    }
+
+    public TossPaymentResponse cancel(String paymentKey, PaymentRequestDTO.CancelPaymentDTO dto) {
+        try {
+            return tossPaymentClient.post()
+                    .uri("/v1/payments/{paymentKey}/cancel", paymentKey)
+                    .body(dto)
+                    .retrieve()
+                    .body(TossPaymentResponse.class);
+        } catch (Exception e) {
+            log.error("Toss Payment Cancel API Error", e);
+            throw new GeneralException(ErrorStatus._INTERNAL_SERVER_ERROR);
+        }
+    }
+}