API/TOOHUCardAPI/Data/AppSettings.cs

using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;

namespace TOOHUCardAPI.Data
{
    public static class AppSettings
    {
        public static int PointsPerLevel { get; set; }
        public static int PointsPerLevelNormal { get; set; }
        public static int FirstWinBonusPointsMin { get; set; }
        public static int FirstWinBonusPointsMax { get; set; }
        public static int DailyKeyBonus { get; set; }
        public static int PointsPerKey { get; set; }
        public static int MaxKeyPurchaseAmount { get; set; }
        public static string StarterDeckGroupKey { get; set; }
        public static string StarterDeckGroupData { get; set; }
        public static void Init(IConfiguration configuration)
        {
            var fields = typeof(AppSettings).GetProperties();
            foreach (var propertyInfo in fields)
            {
                if (propertyInfo.PropertyType == typeof(string))
                {
                    propertyInfo.SetValue(null, configuration.GetValue<string>(propertyInfo.Name));
                }
                else if (propertyInfo.PropertyType == typeof(int))
                {
                    propertyInfo.SetValue(null, configuration.GetValue<int>(propertyInfo.Name));
                }
                else if (propertyInfo.PropertyType == typeof(double))
                {
                    propertyInfo.SetValue(null, configuration.GetValue<double>(propertyInfo.Name));
                }
            }
        }
    }
}