커뮤니티 게시글 조회 API 개선 완료

src/main/java/page/clab/api/domain/board/application/BoardService.java

@@ -87,7 +87,7 @@ public PagedResponseDto<BoardMyResponseDto> getMyBoards(Pageable pageable) {
     @Transactional(readOnly = true)
     public PagedResponseDto<BoardCategoryResponseDto> getBoardsByCategory(BoardCategory category, Pageable pageable) {
         Page<Board> boards = getBoardByCategory(category, pageable);
-        return new PagedResponseDto<>(boards.map(BoardCategoryResponseDto::toDto));
+        return new PagedResponseDto<>(boards.map(this::mapToBoardCategoryResponseDto));
     }
 
     @Transactional
@@ -137,6 +137,12 @@ private BoardListResponseDto mapToBoardListResponseDto(Board board) {
         return BoardListResponseDto.toDto(board, commentCount);
     }
 
+    @NotNull
+    private BoardCategoryResponseDto mapToBoardCategoryResponseDto(Board board) {
+        Long commentCount = commentRepository.countByBoard(board);
+        return BoardCategoryResponseDto.toDto(board, commentCount);
+    }
+
     public Board getBoardByIdOrThrow(Long boardId) {
         return boardRepository.findById(boardId)
                 .orElseThrow(() -> new NotFoundException("해당 게시글이 존재하지 않습니다."));

src/main/java/page/clab/api/domain/board/dto/response/BoardCategoryResponseDto.java

@@ -21,18 +21,21 @@ public class BoardCategoryResponseDto {
 
     private String title;
 
+    private Long commentCount;
+
     private String imageUrl;
 
     private LocalDateTime createdAt;
 
-    public static BoardCategoryResponseDto toDto(Board board) {
+    public static BoardCategoryResponseDto toDto(Board board, Long commentCount) {
         WriterInfo writerInfo = WriterInfo.fromBoard(board);
         return BoardCategoryResponseDto.builder()
                 .id(board.getId())
                 .category(board.getCategory().getKey())
                 .writerId(writerInfo.getId())
                 .writerName(writerInfo.getName())
                 .title(board.getTitle())
+                .commentCount(commentCount)
                 .imageUrl(board.getImageUrl())
                 .createdAt(board.getCreatedAt())
                 .build();