feat: 로컬 개발 환경 개선 - 대량 테스트 데이터 생성 및 설정 최적화

sylee6529 · sylee6529 · commit 0877830cac5e · 2025-11-28T16:57:15.000+09:00
로컬 개발 편의성 향상을 위한 데이터 시더 및 설정 개선
- LocalDataSeeder: JavaFaker를 활용한 대량 테스트 데이터 자동 생성
- JavaFaker 의존성 추가 (SnakeYAML 충돌 해결)
- JPA ddl-auto를 create → update로 변경하여 데이터 보존
- Hibernate SQL 상세 로깅 설정 추가 (파라미터 바인딩 포함)
- @EnableScheduling 활성화 (캐시 동기화 스케줄러용)
- Order, Point, Coupon, Member 도메인의 memberId 타입 변경 반영
diff --git a/apps/commerce-api/src/main/java/com/loopers/CommerceApiApplication.java b/apps/commerce-api/src/main/java/com/loopers/CommerceApiApplication.java
@@ -4,8 +4,10 @@
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.properties.ConfigurationPropertiesScan;
+import org.springframework.scheduling.annotation.EnableScheduling;
 import java.util.TimeZone;
 
+@EnableScheduling
 @ConfigurationPropertiesScan
 @SpringBootApplication
 public class CommerceApiApplication {
diff --git a/apps/commerce-api/src/main/java/com/loopers/application/members/MemberFacade.java b/apps/commerce-api/src/main/java/com/loopers/application/members/MemberFacade.java
@@ -19,7 +19,7 @@ public class MemberFacade {
     @Transactional
     public MemberInfo registerMember(String memberId, String email, String password, String birthDate, Gender gender) {
         Member member = memberService.registerMember(memberId, email, password, birthDate, gender);
-        pointService.initializeMemberPoints(memberId);
+        pointService.initializeMemberPoints(member.getId());  // Member PK 사용
         return MemberInfo.from(member);
     }
 
diff --git a/apps/commerce-api/src/main/java/com/loopers/application/order/OrderCommand.java b/apps/commerce-api/src/main/java/com/loopers/application/order/OrderCommand.java
@@ -9,19 +9,19 @@
 @Builder
 public class OrderCommand {
 
-    private final String memberId;
+    private final Long memberId;
     private final List<OrderLineCommand> orderLines;
     private final Long memberCouponId;
 
-    public static OrderCommand of(String memberId, List<OrderLineCommand> orderLines) {
+    public static OrderCommand of(Long memberId, List<OrderLineCommand> orderLines) {
         return OrderCommand.builder()
                 .memberId(memberId)
                 .orderLines(orderLines)
                 .memberCouponId(null)
                 .build();
     }
 
-    public static OrderCommand of(String memberId, List<OrderLineCommand> orderLines, Long memberCouponId) {
+    public static OrderCommand of(Long memberId, List<OrderLineCommand> orderLines, Long memberCouponId) {
         return OrderCommand.builder()
                 .memberId(memberId)
                 .orderLines(orderLines)
diff --git a/apps/commerce-api/src/main/java/com/loopers/application/order/OrderInfo.java b/apps/commerce-api/src/main/java/com/loopers/application/order/OrderInfo.java
@@ -14,7 +14,7 @@
 public class OrderInfo {
     
     private final Long id;
-    private final String memberId;
+    private final Long memberId;
     private final Money totalPrice;
     private final List<OrderItemInfo> items;
     private final ZonedDateTime orderedAt;
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/coupon/MemberCoupon.java b/apps/commerce-api/src/main/java/com/loopers/domain/coupon/MemberCoupon.java
@@ -19,7 +19,7 @@ public class MemberCoupon {
     private Long id;
 
     @Column(nullable = false)
-    private String memberId;
+    private Long memberId;
 
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "coupon_id", nullable = false)
@@ -28,14 +28,14 @@ public class MemberCoupon {
     @Column(nullable = false)
     private boolean used;
 
-    private MemberCoupon(String memberId, Coupon coupon) {
+    private MemberCoupon(Long memberId, Coupon coupon) {
         validate(memberId, coupon);
         this.memberId = memberId;
         this.coupon = coupon;
         this.used = false;
     }
 
-    public static MemberCoupon issue(String memberId, Coupon coupon) {
+    public static MemberCoupon issue(Long memberId, Coupon coupon) {
         return new MemberCoupon(memberId, coupon);
     }
 
@@ -54,7 +54,7 @@ public Money calculateDiscount(Money originalPrice) {
         return coupon.calculateDiscount(originalPrice);
     }
 
-    public void validateOwnership(String memberId) {
+    public void validateOwnership(Long memberId) {
         if (!this.memberId.equals(memberId)) {
             throw new CoreException(ErrorType.BAD_REQUEST, "본인의 쿠폰만 사용할 수 있습니다.");
         }
@@ -66,8 +66,8 @@ public void validateUsable() {
         }
     }
 
-    private void validate(String memberId, Coupon coupon) {
-        if (memberId == null || memberId.isBlank()) {
+    private void validate(Long memberId, Coupon coupon) {
+        if (memberId == null) {
             throw new CoreException(ErrorType.BAD_REQUEST, "회원 ID는 필수입니다.");
         }
         if (coupon == null) {
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/coupon/repository/MemberCouponRepository.java b/apps/commerce-api/src/main/java/com/loopers/domain/coupon/repository/MemberCouponRepository.java
@@ -11,7 +11,7 @@ public interface MemberCouponRepository {
 
     Optional<MemberCoupon> findByIdForUpdate(Long id);
 
-    List<MemberCoupon> findByMemberId(String memberId);
+    List<MemberCoupon> findByMemberId(Long memberId);
 
     MemberCoupon save(MemberCoupon memberCoupon);
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/members/repository/MemberRepository.java b/apps/commerce-api/src/main/java/com/loopers/domain/members/repository/MemberRepository.java
@@ -6,4 +6,5 @@ public interface MemberRepository {
     Member save(Member member);
     Member findByMemberId(String memberId);
     boolean existsByMemberId(String memberId);
+    boolean existsById(Long id);
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/order/Order.java b/apps/commerce-api/src/main/java/com/loopers/domain/order/Order.java
@@ -18,8 +18,8 @@
 public class Order extends BaseEntity {
 
     @Getter
-    @Column(name = "member_id", nullable = false, length = 10)
-    private String memberId;
+    @Column(name = "member_id", nullable = false)
+    private Long memberId;
 
     @Getter
     @Embedded
@@ -29,7 +29,7 @@ public class Order extends BaseEntity {
     @OneToMany(mappedBy = "order", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
     private List<OrderItem> items = new ArrayList<>();
 
-    private Order(String memberId, List<OrderItem> items, Money totalPrice) {
+    private Order(Long memberId, List<OrderItem> items, Money totalPrice) {
         validateMemberId(memberId);
         validateItems(items);
         validateTotalPrice(totalPrice);
@@ -40,14 +40,14 @@ private Order(String memberId, List<OrderItem> items, Money totalPrice) {
         items.forEach(this::addItem);
     }
 
-    public static Order create(String memberId, List<OrderItem> items) {
+    public static Order create(Long memberId, List<OrderItem> items) {
         validateMemberId(memberId);
         validateItems(items);
         Money totalPrice = calculateTotalPrice(items);
         return new Order(memberId, items, totalPrice);
     }
 
-    public static Order create(String memberId, List<OrderItem> items, Money finalPrice) {
+    public static Order create(Long memberId, List<OrderItem> items, Money finalPrice) {
         validateMemberId(memberId);
         validateItems(items);
         validateTotalPrice(finalPrice);
@@ -69,8 +69,8 @@ private static Money calculateTotalPrice(List<OrderItem> items) {
                 .reduce(Money.zero(), Money::plus);
     }
 
-    private static void validateMemberId(String memberId) {
-        if (memberId == null || memberId.trim().isEmpty()) {
+    private static void validateMemberId(Long memberId) {
+        if (memberId == null) {
             throw new CoreException(ErrorType.BAD_REQUEST, "회원 ID는 필수입니다.");
         }
     }
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/order/command/OrderPlacementCommand.java b/apps/commerce-api/src/main/java/com/loopers/domain/order/command/OrderPlacementCommand.java
@@ -9,19 +9,19 @@
 @Builder
 public class OrderPlacementCommand {
 
-    private final String memberId;
+    private final Long memberId;
     private final List<OrderLineCommand> orderLines;
     private final Long memberCouponId;
 
-    public static OrderPlacementCommand of(String memberId, List<OrderLineCommand> orderLines) {
+    public static OrderPlacementCommand of(Long memberId, List<OrderLineCommand> orderLines) {
         return OrderPlacementCommand.builder()
                 .memberId(memberId)
                 .orderLines(orderLines)
                 .memberCouponId(null)
                 .build();
     }
 
-    public static OrderPlacementCommand of(String memberId, List<OrderLineCommand> orderLines, Long memberCouponId) {
+    public static OrderPlacementCommand of(Long memberId, List<OrderLineCommand> orderLines, Long memberCouponId) {
         return OrderPlacementCommand.builder()
                 .memberId(memberId)
                 .orderLines(orderLines)
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/order/service/OrderPlacementService.java b/apps/commerce-api/src/main/java/com/loopers/domain/order/service/OrderPlacementService.java
@@ -67,7 +67,7 @@ public Order placeOrder(OrderPlacementCommand command) {
         return orderRepository.save(order);
     }
 
-    private MemberCoupon validateAndLockCoupon(Long memberCouponId, String memberId) {
+    private MemberCoupon validateAndLockCoupon(Long memberCouponId, Long memberId) {
         MemberCoupon memberCoupon = memberCouponRepository.findByIdForUpdate(memberCouponId)
                 .orElseThrow(() -> new CoreException(ErrorType.NOT_FOUND, "쿠폰을 찾을 수 없습니다."));
 
@@ -79,7 +79,7 @@ private MemberCoupon validateAndLockCoupon(Long memberCouponId, String memberId)
 
     private List<OrderItem> processOrderLines(List<OrderLineCommand> orderLines) {
         List<OrderItem> items = new ArrayList<>();
-        
+
         for (OrderLineCommand line : orderLines) {
             Product product = productRepository.findById(line.getProductId())
                     .orElseThrow(() -> new CoreException(ErrorType.NOT_FOUND, "상품을 찾을 수 없습니다."));
@@ -91,17 +91,17 @@ private List<OrderItem> processOrderLines(List<OrderLineCommand> orderLines) {
 
             items.add(new OrderItem(product.getId(), line.getQuantity(), product.getPrice()));
         }
-        
+
         return items;
     }
 
-    private void validateMemberExists(String memberId) {
-        if (!memberRepository.existsByMemberId(memberId)) {
+    private void validateMemberExists(Long memberId) {
+        if (!memberRepository.existsById(memberId)) {
             throw new CoreException(ErrorType.NOT_FOUND, "회원을 찾을 수 없습니다.");
         }
     }
 
-    private void payWithPoints(String memberId, Money totalPrice) {
+    private void payWithPoints(Long memberId, Money totalPrice) {
         Point point = pointRepository.findByMemberIdForUpdate(memberId)
                 .orElseThrow(() -> new CoreException(ErrorType.NOT_FOUND, "포인트 정보를 찾을 수 없습니다."));
 
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/points/Point.java b/apps/commerce-api/src/main/java/com/loopers/domain/points/Point.java
@@ -19,13 +19,13 @@
 @Table(name = "point")
 public class Point extends BaseEntity {
 
-    @Column(unique = true, nullable = false, length = 10)
-    private String memberId;
+    @Column(unique = true, nullable = false)
+    private Long memberId;
 
     @Column(nullable = false)
     private BigDecimal amount;
 
-    public static Point create(String memberId, BigDecimal amount) {
+    public static Point create(Long memberId, BigDecimal amount) {
         if (amount == null || amount.compareTo(BigDecimal.ZERO) < 0) {
             throw new CoreException(ErrorType.BAD_REQUEST, "포인트는 0 이상이어야 합니다");
         }
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/points/repository/PointRepository.java b/apps/commerce-api/src/main/java/com/loopers/domain/points/repository/PointRepository.java
@@ -5,9 +5,9 @@
 import java.util.Optional;
 
 public interface PointRepository {
-    Optional<Point> findByMemberId(String memberId);
+    Optional<Point> findByMemberId(Long memberId);
 
-    Optional<Point> findByMemberIdForUpdate(String memberId);
+    Optional<Point> findByMemberIdForUpdate(Long memberId);
 
     Point save(Point point);
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/domain/points/service/PointService.java b/apps/commerce-api/src/main/java/com/loopers/domain/points/service/PointService.java
@@ -15,14 +15,14 @@ public class PointService {
     private final PointRepository pointRepository;
 
     @Transactional(readOnly = true)
-    public BigDecimal getMemberPoints(String memberId) {
+    public BigDecimal getMemberPoints(Long memberId) {
         return pointRepository.findByMemberId(memberId)
                 .map(Point::getAmount)
                 .orElse(null);
     }
 
     @Transactional
-    public Point initializeMemberPoints(String memberId) {
+    public Point initializeMemberPoints(Long memberId) {
         Point point = Point.create(memberId, BigDecimal.ZERO);
         return pointRepository.save(point);
     }
diff --git a/apps/commerce-api/src/main/java/com/loopers/infrastructure/coupon/MemberCouponJpaRepository.java b/apps/commerce-api/src/main/java/com/loopers/infrastructure/coupon/MemberCouponJpaRepository.java
@@ -16,5 +16,5 @@ public interface MemberCouponJpaRepository extends JpaRepository<MemberCoupon, L
     @Query("SELECT mc FROM MemberCoupon mc JOIN FETCH mc.coupon WHERE mc.id = :id")
     Optional<MemberCoupon> findByIdForUpdate(@Param("id") Long id);
 
-    List<MemberCoupon> findByMemberId(String memberId);
+    List<MemberCoupon> findByMemberId(Long memberId);
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/infrastructure/coupon/MemberCouponRepositoryImpl.java b/apps/commerce-api/src/main/java/com/loopers/infrastructure/coupon/MemberCouponRepositoryImpl.java
@@ -25,7 +25,7 @@ public Optional<MemberCoupon> findByIdForUpdate(Long id) {
     }
 
     @Override
-    public List<MemberCoupon> findByMemberId(String memberId) {
+    public List<MemberCoupon> findByMemberId(Long memberId) {
         return memberCouponJpaRepository.findByMemberId(memberId);
     }
 
diff --git a/apps/commerce-api/src/main/java/com/loopers/infrastructure/members/MemberRepositoryImpl.java b/apps/commerce-api/src/main/java/com/loopers/infrastructure/members/MemberRepositoryImpl.java
@@ -24,4 +24,9 @@ public Member findByMemberId(String memberId) {
     public boolean existsByMemberId(String memberId) {
         return memberJpaRepository.existsByMemberId(memberId);
     }
+
+    @Override
+    public boolean existsById(Long id) {
+        return memberJpaRepository.existsById(id);
+    }
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/infrastructure/points/PointJpaRepository.java b/apps/commerce-api/src/main/java/com/loopers/infrastructure/points/PointJpaRepository.java
@@ -10,9 +10,9 @@
 import java.util.Optional;
 
 public interface PointJpaRepository extends JpaRepository<Point, Long> {
-    Optional<Point> findByMemberId(String memberId);
+    Optional<Point> findByMemberId(Long memberId);
 
     @Lock(LockModeType.PESSIMISTIC_WRITE)
     @Query("SELECT p FROM Point p WHERE p.memberId = :memberId")
-    Optional<Point> findByMemberIdForUpdate(@Param("memberId") String memberId);
+    Optional<Point> findByMemberIdForUpdate(@Param("memberId") Long memberId);
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/infrastructure/points/PointRepositoryImpl.java b/apps/commerce-api/src/main/java/com/loopers/infrastructure/points/PointRepositoryImpl.java
@@ -13,12 +13,12 @@ public class PointRepositoryImpl implements PointRepository {
     private final PointJpaRepository pointJpaRepository;
 
     @Override
-    public Optional<Point> findByMemberId(String memberId) {
+    public Optional<Point> findByMemberId(Long memberId) {
         return pointJpaRepository.findByMemberId(memberId);
     }
 
     @Override
-    public Optional<Point> findByMemberIdForUpdate(String memberId) {
+    public Optional<Point> findByMemberIdForUpdate(Long memberId) {
         return pointJpaRepository.findByMemberIdForUpdate(memberId);
     }
 
diff --git a/apps/commerce-api/src/main/java/com/loopers/interfaces/api/order/OrderV1ApiSpec.java b/apps/commerce-api/src/main/java/com/loopers/interfaces/api/order/OrderV1ApiSpec.java
@@ -14,6 +14,6 @@ public interface OrderV1ApiSpec {
     @Operation(summary = "주문 생성", description = "새로운 주문을 생성합니다.")
     ApiResponse<OrderV1Dto.OrderResponse> placeOrder(
             @Valid @RequestBody OrderV1Dto.PlaceOrderRequest request,
-            @RequestHeader("X-USER-ID") String memberId
+            @RequestHeader("X-USER-ID") Long memberId
     );
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/interfaces/api/order/OrderV1Controller.java b/apps/commerce-api/src/main/java/com/loopers/interfaces/api/order/OrderV1Controller.java
@@ -21,7 +21,7 @@ public class OrderV1Controller implements OrderV1ApiSpec {
     @PostMapping("/orders")
     public ApiResponse<OrderV1Dto.OrderResponse> placeOrder(
             @Valid @RequestBody OrderV1Dto.PlaceOrderRequest request,
-            @RequestHeader("X-USER-ID") String memberId
+            @RequestHeader("X-USER-ID") Long memberId
     ) {
         List<OrderLineCommand> orderLines = request.orderLines().stream()
                 .map(line -> OrderLineCommand.of(line.productId(), line.quantity()))
diff --git a/apps/commerce-api/src/main/java/com/loopers/interfaces/api/order/OrderV1Dto.java b/apps/commerce-api/src/main/java/com/loopers/interfaces/api/order/OrderV1Dto.java
@@ -24,7 +24,7 @@ public record OrderLineRequest(
 
     public record OrderResponse(
             Long id,
-            String memberId,
+            Long memberId,
             BigDecimal totalPrice,
             List<OrderItemResponse> items,
             ZonedDateTime orderedAt
diff --git a/apps/commerce-api/src/main/java/com/loopers/interfaces/api/points/PointV1ApiSpec.java b/apps/commerce-api/src/main/java/com/loopers/interfaces/api/points/PointV1ApiSpec.java
@@ -10,6 +10,6 @@ public interface PointV1ApiSpec {
 
     @Operation(summary = "포인트 조회", description = "현재 로그인한 회원의 포인트를 조회합니다.")
     ApiResponse<PointV1Dto.PointResponse> getMemberPoints(
-            @Parameter(description = "사용자 ID", required = true) String userId
+            @Parameter(description = "사용자 ID", required = true) Long userId
     );
 }
diff --git a/apps/commerce-api/src/main/java/com/loopers/interfaces/api/points/PointV1Controller.java b/apps/commerce-api/src/main/java/com/loopers/interfaces/api/points/PointV1Controller.java
@@ -22,12 +22,12 @@ public class PointV1Controller implements PointV1ApiSpec {
     @GetMapping
     @Override
     public ApiResponse<PointV1Dto.PointResponse> getMemberPoints(
-            @RequestHeader(value = "X-USER-ID", required = false) String userId
+            @RequestHeader(value = "X-USER-ID", required = false) Long userId
     ) {
-        if (userId == null || userId.isBlank()) {
+        if (userId == null) {
             throw new CoreException(ErrorType.MISSING_REQUEST_HEADER, "X-USER-ID 헤더는 필수입니다.");
         }
-        
+
         BigDecimal points = pointService.getMemberPoints(userId);
         PointV1Dto.PointResponse response = new PointV1Dto.PointResponse(points);
         return ApiResponse.success(response);
diff --git a/apps/commerce-api/src/main/java/com/loopers/support/seed/LocalDataSeeder.java b/apps/commerce-api/src/main/java/com/loopers/support/seed/LocalDataSeeder.java
diff --git a/apps/commerce-api/src/test/java/com/loopers/domain/coupon/InMemoryMemberCouponRepository.java b/apps/commerce-api/src/test/java/com/loopers/domain/coupon/InMemoryMemberCouponRepository.java
diff --git a/apps/commerce-api/src/test/java/com/loopers/domain/points/InMemoryPointRepository.java b/apps/commerce-api/src/test/java/com/loopers/domain/points/InMemoryPointRepository.java
diff --git a/build.gradle.kts b/build.gradle.kts
diff --git a/modules/jpa/src/main/resources/jpa.yml b/modules/jpa/src/main/resources/jpa.yml

Original file line number	Diff line number	Diff line change
`@@ -19,7 +19,7 @@ public class MemberFacade {`
`19`	`19`	`@Transactional`
`20`	`20`	`public MemberInfo registerMember(String memberId, String email, String password, String birthDate, Gender gender) {`
`21`	`21`	`Member member = memberService.registerMember(memberId, email, password, birthDate, gender);`
`22`		`- pointService.initializeMemberPoints(memberId);`
	`22`	`+ pointService.initializeMemberPoints(member.getId()); // Member PK 사용`
`23`	`23`	`return MemberInfo.from(member);`
`24`	`24`	`}`
`25`	`25`
Original file line number	Diff line number	Diff line change
`@@ -19,7 +19,7 @@ public class MemberCoupon {`
`19`	`19`	`private Long id;`
`20`	`20`
`21`	`21`	`@Column(nullable = false)`
`22`		`- private String memberId;`
	`22`	`+ private Long memberId;`
`23`	`23`
`24`	`24`	`@ManyToOne(fetch = FetchType.LAZY)`
`25`	`25`	`@JoinColumn(name = "coupon_id", nullable = false)`
`@@ -28,14 +28,14 @@ public class MemberCoupon {`
`28`	`28`	`@Column(nullable = false)`
`29`	`29`	`private boolean used;`
`30`	`30`
`31`		`- private MemberCoupon(String memberId, Coupon coupon) {`
	`31`	`+ private MemberCoupon(Long memberId, Coupon coupon) {`
`32`	`32`	`validate(memberId, coupon);`
`33`	`33`	`this.memberId = memberId;`
`34`	`34`	`this.coupon = coupon;`
`35`	`35`	`this.used = false;`
`36`	`36`	`}`
`37`	`37`
`38`		`- public static MemberCoupon issue(String memberId, Coupon coupon) {`
	`38`	`+ public static MemberCoupon issue(Long memberId, Coupon coupon) {`
`39`	`39`	`return new MemberCoupon(memberId, coupon);`
`40`	`40`	`}`
`41`	`41`
`@@ -54,7 +54,7 @@ public Money calculateDiscount(Money originalPrice) {`
`54`	`54`	`return coupon.calculateDiscount(originalPrice);`
`55`	`55`	`}`
`56`	`56`
`57`		`- public void validateOwnership(String memberId) {`
	`57`	`+ public void validateOwnership(Long memberId) {`
`58`	`58`	`if (!this.memberId.equals(memberId)) {`
`59`	`59`	`throw new CoreException(ErrorType.BAD_REQUEST, "본인의 쿠폰만 사용할 수 있습니다.");`
`60`	`60`	`}`
`@@ -66,8 +66,8 @@ public void validateUsable() {`
`66`	`66`	`}`
`67`	`67`	`}`
`68`	`68`
`69`		`- private void validate(String memberId, Coupon coupon) {`
`70`		`- if (memberId == null \|\| memberId.isBlank()) {`
	`69`	`+ private void validate(Long memberId, Coupon coupon) {`
	`70`	`+ if (memberId == null) {`
`71`	`71`	`throw new CoreException(ErrorType.BAD_REQUEST, "회원 ID는 필수입니다.");`
`72`	`72`	`}`
`73`	`73`	`if (coupon == null) {`
Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@ public interface MemberCouponRepository {`
`11`	`11`
`12`	`12`	`Optional<MemberCoupon> findByIdForUpdate(Long id);`
`13`	`13`
`14`		`- List<MemberCoupon> findByMemberId(String memberId);`
	`14`	`+ List<MemberCoupon> findByMemberId(Long memberId);`
`15`	`15`
`16`	`16`	`MemberCoupon save(MemberCoupon memberCoupon);`
`17`	`17`	`}`
Original file line number	Diff line number	Diff line change
`@@ -6,4 +6,5 @@ public interface MemberRepository {`
`6`	`6`	`Member save(Member member);`
`7`	`7`	`Member findByMemberId(String memberId);`
`8`	`8`	`boolean existsByMemberId(String memberId);`
	`9`	`+ boolean existsById(Long id);`
`9`	`10`	`}`