Laravel and Json : return the name of the array

Laravel and Json : return the name of the array

$posts = DB::table('posts')
            ->Join('releases', 'posts.release_id', '=', 'releases.id')
            ->Join('artists', 'posts.artist_id', '=', 'artists.id')
            ->select('posts.*', 'artists.title as artist_title', 'releases.title as release_title', 'artists.thumbnail_path as artistImg', 'releases.thumbnail_path as releaseImg')
            ->get();
            
           return json_encode(['datapack'=>$posts],200);
           
           or
           
           return Response::json(['datapack'=>$posts],200);