using System;

using Microsoft.Extensions.Logging;

using Microsoft.Extensions.DependencyInjection;

using Microsoft.Extensions.Configuration;

var services = new ServiceCollection();

​

services.AddLogging(lb => lb.AddSimpleConsole());

​

// Dispose service provider

using var sp = services.BuildServiceProvider();

var requiredService = sp.GetRequiredService<ILogger<Program>>();

requiredService.LogInformation("Test");