SteamAPIでWorkshop Itemの詳細を取得する

GetPublishedFileDetailsを使えば Workshop のItemの詳細を取得することが出来ます．

APIドキュメントは以下
ISteamRemoteStorage Interface (Steamworks Documentation)

payloadに指定するpublishedfileids[0]とはなんなのか? これはWorkshopにアップロードされたアイテムのIDで，以下の例だと971653735がpublishedfileidになります．
https://steamcommunity.com/sharedfiles/filedetails/?id=971653735

idを指定して叩いてあげればこんな感じで詳細を取得できます．

{
    "response": {
        "result": 1,
        "resultcount": 1,
        "publishedfiledetails": [
            {
                "publishedfileid": "971653735",
                "result": 1,
                "creator": "76561198067216145",
                "creator_app_id": 571740,
                "consumer_app_id": 571740,
                "filename": "",
                "file_size": 5034927,
                "file_url": "",
                "hcontent_file": "8591794897085375969",
                "preview_url": "https://steamuserimages-a.akamaihd.net/ugc/836957960631748738/02BBE5847C95E4646B6E5311355920CE5A6718A2/",
                "hcontent_preview": "836957960631748738",
                "title": "Golf It With Your Friends ! - Ancient [18 Holes]",
                "description": "Golf With Your Friends Map rebuild in Golf It!\r\n\r\nIf u find any Bugs or Glitches let us know!\r\n\r\nIt contains 18 holes and the anticipated time per round is 5 minutes.\r\n\r\nObjects placed: 4500+\r\nTime needed to build: 9h\r\n\r\nMade by Heisenburrg, Daniklaus, Thom4$ & Jan",
                "time_created": 1499618722,
                "time_updated": 1499814875,
                "visibility": 0,
                "banned": 0,
                "ban_reason": "",
                "subscriptions": 936,
                "favorited": 5,
                "lifetime_subscriptions": 1013,
                "lifetime_favorited": 5,
                "views": 580,
                "tags": [
                    {
                        "tag": "Maps"
                    }
                ]
                
            }
        ]
        
    }
}