A minimal console app using .NET Generic Host API

GenHostConApp.cs

// https://twitter.com/noseratio/status/1535173151910350848
// https://docs.microsoft.com/en-us/dotnet/core/extensions/generic-host

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

using var host = Host.CreateDefaultBuilder(Environment.GetCommandLineArgs())
    .ConfigureLogging(
        logging =>
        {
            logging.ClearProviders();
            //logging.AddConsole();
        })
    .ConfigureServices((context, services) =>
        // add any other services
        services.AddHostedService<AsyncRunner>())
    .Build();

using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(5));
await host.RunAsync(cts.Token);

class AsyncRunner : BackgroundService
{
    private readonly IServiceProvider _serviceProvider;
    private readonly IHostApplicationLifetime _lifeTime;

    public AsyncRunner(IServiceProvider serviceProvider, IHostApplicationLifetime lifeTime)
    {
        // request any serices via constructor parameters or via serviceProvider 
        _serviceProvider = serviceProvider;
        _lifeTime = lifeTime;
    }

    protected virtual async Task MainAsync(CancellationToken stoppingToken)
    {
        // run until cancelled
        while (true)
        {
            Console.WriteLine($"Hello at {DateTime.Now}");
            await Task.Delay(TimeSpan.FromSeconds(0.5), stoppingToken);
        }
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        try
        {
            await MainAsync(stoppingToken);
        }
        catch (OperationCanceledException)
        {
        }
        finally
        {
            _lifeTime.StopApplication();
        }
    }
}