// collection.controller.ts // 컨텐츠 추가 @UseGuards(AuthGuard('jwt')) @Post('/:collectionId/content') async addContentToCollection( @UserInfo() user: Users, @Param('collectionId') collectionId: number, @Body('webContentId') webContentId: number, ) { const userId = user.id; const isContentExist = await this.collectionService.isContentExistInCollection( userId, collectionId, webContentId, ); if (isCo..