BE/#255 알림 목록 조회 기능 구현

backend/src/main/java/com/graphy/backend/domain/notification/controller/NotificationController.java

@@ -0,0 +1,34 @@
+package com.graphy.backend.domain.notification.controller;
+
+import com.graphy.backend.domain.auth.util.annotation.CurrentUser;
+import com.graphy.backend.domain.member.domain.Member;
+import com.graphy.backend.domain.notification.dto.response.GetNotificationResponse;
+import com.graphy.backend.domain.notification.service.NotificationService;
+import com.graphy.backend.global.common.PageRequest;
+import com.graphy.backend.global.result.ResultCode;
+import com.graphy.backend.global.result.ResultResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@Tag(name = "NotificationController", description = "알림 관련 API")
+@RestController
+@RequestMapping("/api/v1/notifications")
+@RequiredArgsConstructor
+public class NotificationController {
+
+    private final NotificationService notificationService;
+
+    @Operation(summary = "findNotificationList", description = "알림 목록 조회")
+    @GetMapping
+    public ResponseEntity<ResultResponse> notificationList(PageRequest pageRequest, @CurrentUser Member loginUser) {
+        List<GetNotificationResponse> result = notificationService.findNotificationList(pageRequest, loginUser);
+        return ResponseEntity.ok(ResultResponse.of(ResultCode.NOTIFICATION_PAGING_GET_SUCCESS, result));
+    }
+}

backend/src/main/java/com/graphy/backend/domain/notification/domain/Notification.java

@@ -7,6 +7,7 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.Where;
 
 import javax.persistence.*;
 
@@ -15,6 +16,7 @@
 @Builder
 @NoArgsConstructor
 @AllArgsConstructor
+@Where(clause = "is_deleted = false")
 @SQLDelete(sql = "UPDATE notification SET is_deleted = true WHERE notification_id = ?")
 public class Notification extends BaseEntity {
 
@@ -23,7 +25,7 @@ public class Notification extends BaseEntity {
     @Column(name = "notification_id")
     private Long id;
 
-    @ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "member_id", nullable = false)
     private Member member;
 

backend/src/main/java/com/graphy/backend/domain/notification/dto/response/GetNotificationResponse.java

@@ -0,0 +1,36 @@
+package com.graphy.backend.domain.notification.dto.response;
+
+import com.graphy.backend.domain.notification.domain.Notification;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Getter
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class GetNotificationResponse {
+    private Long id;
+    private String type;
+    private String content;
+    private boolean isRead;
+
+    public static GetNotificationResponse from(Notification notification) {
+        return GetNotificationResponse.builder()
+                .id(notification.getId())
+                .type(notification.getType().toString())
+                .content(notification.getContent())
+                .isRead(notification.isRead())
+                .build();
+    }
+
+    public static List<GetNotificationResponse> from(List<Notification> notifications) {
+        return notifications.stream()
+                .map(GetNotificationResponse::from)
+                .collect(Collectors.toList());
+    }
+}

backend/src/main/java/com/graphy/backend/domain/notification/repository/NotificationRepository.java

@@ -1,8 +1,10 @@
 package com.graphy.backend.domain.notification.repository;
 
 import com.graphy.backend.domain.notification.domain.Notification;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface NotificationRepository extends JpaRepository<Notification, Long> {
-
+    Page<Notification> findAllByMemberId(Long memberId, Pageable pageable);
 }

backend/src/main/java/com/graphy/backend/domain/notification/service/NotificationService.java

@@ -4,14 +4,19 @@
 import com.graphy.backend.domain.member.service.MemberService;
 import com.graphy.backend.domain.notification.domain.Notification;
 import com.graphy.backend.domain.notification.dto.NotificationDto;
+import com.graphy.backend.domain.notification.dto.response.GetNotificationResponse;
 import com.graphy.backend.domain.notification.repository.NotificationRepository;
+import com.graphy.backend.global.common.PageRequest;
 import com.graphy.backend.global.error.exception.BusinessException;
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.mail.MessagingException;
 
+import java.util.List;
+
 import static com.graphy.backend.global.error.ErrorCode.SEND_EMAIL_FAIL;
 
 @RequiredArgsConstructor
@@ -33,4 +38,12 @@ public void addNotification(NotificationDto dto, Long memberId) {
             throw new BusinessException(SEND_EMAIL_FAIL);
         }
     }
+
+    public List<GetNotificationResponse> findNotificationList(PageRequest pageRequest, Member loginUser) {
+        memberService.findMemberById(loginUser.getId());
+        Page<Notification> result
+                = notificationRepository.findAllByMemberId(loginUser.getId(), pageRequest.of());
+        List<Notification> notifications = result.getContent();
+        return GetNotificationResponse.from(notifications);
+    }
 }

backend/src/main/java/com/graphy/backend/global/result/ResultCode.java

@@ -58,7 +58,10 @@ public enum ResultCode {
     // Message
     MESSAGE_CREATE_SUCCESS("MSG001", "쪽지 전송 성공"),
     MESSAGE_GET_SUCCESS("MSG002", "쪽지 단건 조회 성공"),
-    MESSAGE_PAGING_GET_SUCCESS("MSG003", "쪽지 페이징 조회 성공");
+    MESSAGE_PAGING_GET_SUCCESS("MSG003", "쪽지 페이징 조회 성공"),
+
+    // Notification
+    NOTIFICATION_PAGING_GET_SUCCESS("N001", "알림 페이징 조회 성공");
 
     private final String code;
     private final String message;