public static IWebHostBuilder CreateWebHostBuilder(string[] args)
{
    var webHost = WebHost.CreateDefaultBuilder(args)
        .UseStartup<Startup>();

    AWSCredentials credentials = new BasicAWSCredentials("xxxx", "xxxx");

    AWSOptions options = new AWSOptions()
    {
        Credentials = credentials,
        Region = Amazon.RegionEndpoint.USEast2
    };

    webHost.ConfigureAppConfiguration(config =>
    {
        config.AddJsonFile("appsettings.json");
        config.AddSystemsManager("/ParameterPath", options, reloadAfter: new System.TimeSpan(0, 1, 0)); // Reload every minute
    });

 return webHost;
}