我试图在C# .NET 7中反序列化来自SteamAPI的响应。我通过RestSharp发出REST请求，并将内容保存为文件。稍后，我加载该文件，并希望将其反序列化以使用LINQ搜索它。但是对于JsonSerializerOptions的各种选项，它不起作用。SteamAppList.AppList始终为null。
对于数据模型，我使用了Json2Csharp和Jetbrains Rider。
我尝试了不同的JsonSerializerOptions，并通过vscode和Jetbrains Rider进行了调试。
下面是我的模型（SteamAppList.cs）：

[Serializable]
    public class SteamAppList
    {
        [JsonPropertyName("applist")]
        public Applist Applist;
    }
    [Serializable]
    public class Applist
    {
        [JsonPropertyName("apps")]
        public List<App> Apps;
    }
    [Serializable]
    public class App
    {
        [JsonPropertyName("appid")]
        public int Appid;

        [JsonPropertyName("name")]
        public string Name;
    }

以及我的SteamApps.cs，用于请求和反序列化：

public class SteamApps
    {
        private readonly CancellationToken cancellationToken;

        private async Task<RestResponse> GetSteamApps()
        {
            var client = new RestClient();
            var request = new RestRequest("https://api.steampowered.com/ISteamApps/GetAppList/v2/");
            request.AddHeader("Accept", "*/*");
            request.AddHeader("User-Agent", "Major GSM");
            var response = await client.GetAsync(request, cancellationToken);
            return response;
        }

        public bool RetireveAndSaveSteamApps()
        {
            var path = FileModule.GetDirectoryPath(MajorGsmLibrary.ApplicationDirectory.Games);
            var fileName = "steam.library.json";
            RestResponse restResponse = GetSteamApps().Result;
            
            try
            {
                File.WriteAllText(Path.Combine(path, fileName), restResponse.Content);
            }
            catch (IOException exception)
            {
                LogModule.WriteError("Could not write steam libarary file!", exception);
                return false;
            }
            catch (ArgumentNullException exception)
            {
                LogModule.WriteError("Missing data for steam library file", exception);
                return false;
            }
            return true;
        }

        public static string CheckGameAgainstSteamLibraryWithAppId(string appId)
        {
            var path = FileModule.GetDirectoryPath(MajorGsmLibrary.ApplicationDirectory.Games);
            var fileName = "steam.library.json";
            var fileData =
                File.ReadAllText(Path.Combine(path, fileName));
            SteamAppList? steamAppList = JsonSerializer.Deserialize<SteamAppList>(fileData, new JsonSerializerOptions { MaxDepth = 64, Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping });

            if (steamAppList!.Applist != null)
            {
                var app = steamAppList.Applist.Apps.SingleOrDefault(x => x.Appid.ToString() == appId);
                if (app != null) return app.Name;
            }

            return "Unknown";
        }
    }

我正在从GTK#应用程序调用SteamApps-class：

foreach (var game in Games)
            {
                var appName = SteamApps.CheckGameAgainstSteamLibraryWithAppId(game.AppId);
                if (appName == "Unknown") return;
                game.FoundInSteamLibrary = true;
                game.SteamLibraryName = appName;
            }

我收到的JSON看起来像这样：

{
"applist": {
    "apps": [
        {
            "appid": 1941401,
            "name": ""
        },
        {
            "appid": 1897482,
            "name": ""
        },
        {
            "appid": 2112761,
            "name": ""
        },
        {
            "appid": 1470110,
            "name": "Who's Your Daddy Playtest"
        },
        {
            "appid": 2340170,
            "name": "Melon Knight"
        },
        {
            "appid": 1793090,
            "name": "Blockbuster Inc."
        }
    ]
}

}