Reference of v3 random

arguments	description	optional
start	range of start	YES when end is not passed in
end	range of end	YES
info	returns song info when set true	YES

The default range is 2 to 23.

For easier storage and higher compatibility
We expanded the song rating table from

1 2 3 4 5 6 7 8 9 9+ 10 10+ 11

to

1 1+ 2 2+ 3 3+ 4 4+ 5 5+ 6 6+ 7 7+ 8 8+ 9 9+ 10 10+ 11 11+

So the algorithm is (ratingNumber * 2) + (ratingPlus ? 1 : 0)
As you can see, now the range is 2 to 23.

content.song_info is same with v3/songinfo

Return data

{
    "status": 0,
    "content": {
        "id": "ifi",
        "rating_class": 2,
        "song_info": {
            "id": "ifi",
            "title_localized": {
                "en": "#1f1e33"
            },
            "artist": "かめりあ(EDP)",
            "bpm": "181",
            "bpm_base": 181,
            "set": "vs",
            "audioTimeSec": 163,
            "side": 1,
            "remote_dl": true,
            "world_unlock": false,
            "date": 1590537604,
            "difficulties": [
                {
                    "ratingClass": 0,
                    "chartDesigner": "夜浪",
                    "jacketDesigner": "望月けい",
                    "rating": 5,
                    "ratingReal": 5.5,
		    "totalNotes": 765
                },
                {
                    "ratingClass": 1,
                    "chartDesigner": "夜浪",
                    "jacketDesigner": "望月けい",
                    "rating": 9,
                    "ratingReal": 9.2,
		    "totalNotes": 1144
                },
                {
                    "ratingClass": 2,
                    "chartDesigner": "夜浪 VS 東星 \"Convergence\"",
                    "jacketDesigner": "望月けい",
                    "rating": 10,
                    "ratingReal": 10.9,
                    "ratingPlus": true,
		    "totalNotes": 1576
                }
            ]
        }
    }
}

Error status

status	description
0	everything is OK
-1	invalid range of start
-2	invalid range of end
-3	internal error
-4	internal error
-233	unknown error occurred