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<pre><code class="language-typescript">//CommentController
@Get(':commentId')
getComment(
  @Param('postId', ParseIntPipe) postId: number,
  @Param('commentId', ParseIntPipe) commentId: number,
) {
  return this.commentsService.getCommentById(postId, commentId);
}
//--------------------------------------------------------------
//CommentService
  async getCommentById(postId: number, commentId: number) {
    const post = await this.postsService.getPostById(postId);

    const comment = await this.commentsRepository.findOne({
      ...DEFAULT_COMMENT_FIND_OPTIONS,
      where: {
        post: {
          id: post.id,
        },
        id: commentId,
      },
    });

    if (!comment) {
      throw new BadRequestException(
        `id: ${commentId} Comment는 존재하지 않습니다.`,
      );
    }

    return comment;
  }</code></pre><p>제 의도대로 수정해봤습니다.</p>

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