a301_mmo_game_server/MMOTestServer/MMOserver/Config/AppConfig.cs

using Microsoft.Extensions.Configuration;

namespace MMOserver.Config;

public static class AppConfig
{
    public static ServerConfig Server
    {
        get;
        private set;
    } = null!;

    public static RestApiConfig RestApi
    {
        get;
        private set;
    } = null!;

    public static void Initialize(IConfiguration config)
    {
        Server = new ServerConfig(config.GetSection("Server"));
        RestApi = new RestApiConfig(config.GetSection("RestApi"));
    }
}

public sealed class ServerConfig
{
    public int Port
    {
        get;
    }

    public ServerConfig(IConfigurationSection section)
    {
        Port = int.Parse(section["Port"] ?? throw new InvalidOperationException("Server:Port is required in config.json"));
    }
}

public sealed class RestApiConfig
{
    public string BaseUrl
    {
        get;
    }

    public string VerifyToken
    {
        get;
    }

    public string ApiKey
    {
        get;
    }

    public RestApiConfig(IConfigurationSection section)
    {
        BaseUrl = section["BaseUrl"] ?? throw new InvalidOperationException("RestApi:BaseUrl is required in config.json");
        VerifyToken = section["VerifyToken"] ?? throw new InvalidOperationException("RestApi:BaseUrl is required in config.json");
        ApiKey = section["ApiKey"] ?? throw new InvalidOperationException("RestApi:ApiKey is required in config.json");
    }
}