Global.asax.cs

using ARMExplorer.App_Start;
using System.Configuration;
using System.Net;
using System.Web.Http;

namespace ARMExplorer
{
    public class Global : System.Web.HttpApplication
    {

        protected void Application_Start()
        {
            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
            Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration
                .Active.InstrumentationKey = ConfigurationManager.AppSettings["AppInsightKey"] ?? System.Environment.GetEnvironmentVariable("AppInsightKey") ?? string.Empty;

            WebApiConfig.Register(GlobalConfiguration.Configuration);
        }
    }
}