public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    var lifetime = app.ApplicationServices
        .GetRequiredService<IHostApplicationLifetime>();

    lifetime.ApplicationStarted.Register(() =>
    {
        var addresses = app.ServerFeatures
            .Get<Microsoft.AspNetCore.Hosting.Server.Features.IServerAddressesFeature>()
            ?.Addresses;

        if (addresses != null)
        {
            foreach (var address in addresses)
            {
                Console.WriteLine($"Listening on: {address}");
            }
        }
    });
}