[Backend] 항공권 좋아요 API 응답값 수정

backend/src/main/java/com/isp/backend/domain/flight/controller/FlightOfferController.java

@@ -56,11 +56,11 @@ public ResponseEntity<String> getFlightSearchUrl(@AuthenticationPrincipal Custom
 
     /** 항공권 좋아요 저장 API **/
     @PostMapping("/like")
-    public ResponseEntity<Void> addLikeFlight(@AuthenticationPrincipal CustomUserDetails customUserDetails,
+    public ResponseEntity<Long> addLikeFlight(@AuthenticationPrincipal CustomUserDetails customUserDetails,
                                               @RequestBody FlightLikeRequest flightLikeRequest) {
         String memberUid = customUserDetails.getUsername();
-        flightOfferService.addLikeFlight(memberUid, flightLikeRequest);
-        return ResponseEntity.status(HttpStatus.CREATED).build();
+        Long flightId = flightOfferService.addLikeFlight(memberUid, flightLikeRequest);
+        return ResponseEntity.status(HttpStatus.CREATED).body(flightId);
     }
 
     /** 항공권 나의 좋아요 목록 불러오기 API **/

backend/src/main/java/com/isp/backend/domain/flight/service/FlightOfferService.java

@@ -1,12 +1,10 @@
 package com.isp.backend.domain.flight.service;
 
 import com.amadeus.exceptions.ResponseException;
-import com.isp.backend.domain.country.entity.Country;
 import com.isp.backend.domain.flight.dto.request.FlightLikeRequest;
 import com.isp.backend.domain.flight.dto.request.FlightSearchRequest;
 import com.isp.backend.domain.flight.dto.request.SkyScannerRequest;
 import com.isp.backend.domain.flight.dto.response.FlightLikeResponse;
-import com.isp.backend.global.exception.schedule.CountryNotFoundException;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
@@ -18,7 +16,7 @@ public interface FlightOfferService {
     String generateSkyscannerUrl(SkyScannerRequest request);
 
     @Transactional
-    void addLikeFlight(String uid, FlightLikeRequest flightLikeRequest);
+    Long addLikeFlight(String uid, FlightLikeRequest flightLikeRequest);
 
     List<FlightLikeResponse> getLikedFlights(String memberUid);
 

backend/src/main/java/com/isp/backend/domain/flight/service/FlightOfferServiceImpl.java

@@ -110,10 +110,13 @@ private String buildChildrenParam(int count) {
         return childrenBuilder.toString();
     }
 
-    /** 항공권 좋아요 저장 **/
+    /**
+     * 항공권 좋아요 저장
+     *
+     **/
     @Override
     @Transactional
-    public void addLikeFlight(String uid, FlightLikeRequest flightLikeRequest) {
+    public Long addLikeFlight(String uid, FlightLikeRequest flightLikeRequest) {
         // 유저 정보 확인
         Member findMember = scheduleService.validateUserCheck(uid);
 
@@ -126,6 +129,7 @@ public void addLikeFlight(String uid, FlightLikeRequest flightLikeRequest) {
         // 데이터 변환 및 저장
         Flight flight = flightMapper.toEntity(flightLikeRequest, findMember, departureIataCode, arrivalIataCode);
         flightRepository.save(flight);
+        return flight.getId();
     }