refactor: friend pagination 방식 수정 (#19)

controllers/friendController.js

@@ -137,15 +137,27 @@ class friendController {
 
     /**
      * 친구 목록 조회
-     * GET /api/friend/all/:offset
+     * GET /api/friend/all?page=1&size=20
      */
     async getFriendList(req, res) {
         try {
             const userId = req.user.id;
-            const friends = await FriendService.getFriendList(userId,20,req.param);
+            const page = parseInt(req.query.page) || 0;
+            const size = parseInt(req.query.size) || 20;
+            
+            const friends = await FriendService.getFriendList(userId, {
+                limit: size,
+                offset: page * size
+            });
+
             return res.status(200).json({
                 success: true,
-                data: friends
+                data: {
+                    content: friends,
+                    page: page,
+                    size: size,
+                    hasNext: friends.length === size 
+                }
             });
         } catch (error) {
             return res.status(500).json({

routes/friend.js

@@ -37,7 +37,7 @@ router.post('/request/:friendId/reject', FriendController.rejectRequest);
 
 /**
  * 친구 목록 조회
- * GET /api/friend/all
+ * GET /api/friend/all?page=1&size=20
  */
 router.get('/all', FriendController.getFriendList);
 

services/friendService.js

@@ -191,7 +191,9 @@ class FriendService {
      * @param {number} offset - 페이징 오프셋
      * @returns {Promise<Array<FriendListDTO>>} - 친구 목록 DTO 배열
      */
-    async getFriendList(userId, limit = 20, offset = 0) {
+    async getFriendList(userId, pagination) {
+        const { limit = 20, offset = 0 } = pagination;
+    
         const friends = await Friend.findAll({
             where: {
                 [Op.or]: [
@@ -213,12 +215,19 @@ class FriendService {
                 }
             ],
             order: [['id', 'ASC']],
-            limit,
+            limit: limit + 1, // 다음 페이지 존재 여부 확인을 위해 1개 더 조회
             offset
         });
     
+        const hasNext = friends.length > limit;
+        const content = friends.slice(0, limit).map(friend => new FriendListDTO(friend, userId));
     
-        return friends.map(friend => new FriendListDTO(friend, userId));
+        return {
+            content,
+            page: offset / limit,
+            size: limit,
+            hasNext
+        };
     }
 
     /**