Program.cs

using System;
using System.IO;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using NLog;
using NLog.Web;

namespace PedeLogo.Catalogo.Api
{
    public class Program
    {

        public static IConfiguration Configuration { get; } = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
            .AddEnvironmentVariables()
            .Build();

        public static void Main(string[] args)
        {
            var logger = LogManager.Setup()
                                  .LoadConfigurationFromAppSettings()
                                  .GetCurrentClassLogger();

            try
            {
                logger.Debug("init main");
                CreateHostBuilder(args).Build().Run();
            }
            catch (Exception exception)
            {
                //NLog: catch setup errors
                logger.Error(exception, "Stopped program because of exception");
                throw;
            }
            finally
            {
                // Ensure to flush and stop internal timers/threads before application-exit (Avoid segmentation fault on Linux)
                NLog.LogManager.Shutdown();
            }
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                   .ConfigureWebHostDefaults(webBuilder =>
                   {
                       webBuilder.UseStartup<Startup>();
                   })
              .ConfigureLogging(logging =>
              {
                  logging.ClearProviders();
                  logging.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace);
              })
              .UseNLog();  // NLog: Setup NLog for Dependency injection
    }
}