using System;

using System.Text.Json;

using Geotab.Checkmate;

using Geotab.Checkmate.ObjectModel;

public class Program

{

    public static void Main()

    {

        // Declare Static Values for Testing.

        var username = "ASRIntegration_ServiceAccount";

        var password = "";

        var database = "upt";

        var server = "my.geotab.com";

        // Create Geotab API object

        API api = new API(username, password, null, database, server);

​

        // Authenticate

        Console.WriteLine("Authenticating...");

        api.Authenticate();

        // Update Zone.

        var zone = new Zone();

        zone.Id = Id.Create("b22B8");

        zone.ExternalReference = "SAMPLE 2";

        api.Call<Zone>("Set", typeof(Zone), new { entity = zone });     

    }

}