Configuration retrieving multiple config values Visual Studio 2015 C#6

Question

Trying to learn Visual Studio 2015 MVC and looking for some advice on how to retrieve multiple config values from config.json.

Currently I have the following:

public IEnumerable<WeatherConfigValues> WeatherAppSetting()
        {
            var con = new Configuration();
            con.AddJsonFile("Config.json");
            var weatherConfigSettings0 = con.Get("AppSettings:WeatherKey");
            var weatherConfigSettings1 = con.Get("AppSettings:Weather_FeedKey");

            var weatherConfigSettings = new List<WeatherConfigValues>
            {
                new WeatherConfigValues {WeatherKey         = weatherConfigSettings0},
                new WeatherConfigValues {WeatherFeedKey     = weatherConfigSettings1}
            };

            return weatherConfigSettings.ToList();
        }

Just ignore the names as I'm just trying to get code to work.

The above code does work and I can get the values in another class Library with the following:

var weatherSettings = new CustomConfigurationSettings();
            var getData         = weatherSettings.WeatherAppSetting().ToList();
            var test1           = getData[0].WeatherKey;
            var test2           = getData[1].WeatherFeedKey;

I have been looking at numerous websites such as http://blog.jsinh.in/asp-net-5-configuration-microsoft-framework-configurationmodel/#.VVYkyPlVhBd and http://whereslou.com/2014/05/23/asp-net-vnext-moving-parts-iconfiguration/ but I'm not sure if I'm doing it the correct way, I tried GetSubKeys but that just returns null values.

So my question is, is this the correct way, or is there a correct way.