How to host a web API in a windows service?

Question

I have created and started a windows service (with exe as MyService.exe) using C# on the other hand I follow up this link for self-hosting: https://codeopinion.com/self-host-asp-net-web-api/.

When I want to combine the windows service and self-hosting web API the OnStart method become like This :

 protected override void OnStart(string[] args)
    {
        ServiceStatus serviceStatus = new ServiceStatus();
        serviceStatus.dwCurrentState = ServiceState.SERVICE_START_PENDING;
        serviceStatus.dwWaitHint = 100000;
        SetServiceStatus(this.ServiceHandle, ref serviceStatus);

        using (WebApp.Start<Startup>("http://localhost:8080"))
        {
            Console.WriteLine("Web Server is running.");
            Console.WriteLine("Press any key to quit.");
            Console.ReadLine();
        }

        System.Timers.Timer timer = new System.Timers.Timer();
        timer.Interval = 300000; // 120 sanieh
        timer.Elapsed += new ElapsedEventHandler(this.OnTimer);
        timer.Start();


        serviceStatus.dwCurrentState = ServiceState.SERVICE_RUNNING;
        SetServiceStatus(this.ServiceHandle, ref serviceStatus);
    }

The service runs but it does not call, unfortunately. Is there any solution that can host a web API in Windows service? Thanks in advance for taking the time to ask my question