Sample program.cs

program.cs

using Microsoft.ApplicationInsights;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Serilog;
using System;
using System.IO;

namespace Hornet.Api
{
    public static class Program
    {
        public static IConfiguration Configuration { get; } = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
            .AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Production"}.json", optional: true)
            .AddEnvironmentVariables()
            .Build();

        public static int Main(string[] args)
        {
            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(Configuration)
                .Enrich.FromLogContext()
                .CreateLogger();
            
            try
            {
                Log.Information($" <::::[]==0 ------------------------------------------ o==[]::::> {Environment.NewLine} *** Starting 'Hornet' web host.");
                BuildWebHost(args).Run();
                return 0;
            }
            catch (Exception exception)
            {
                var telemetry = new TelemetryClient();
                telemetry.TrackException(exception);

                Log.Fatal(exception, "Host terminated unexpectedly");
                return 1;
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()
                .UseConfiguration(Configuration)
                .ConfigureLogging(logger => logger.ClearProviders()
                                                  .AddSerilog())
                .UseApplicationInsights()
                .SuppressStatusMessages(true)
                .Build();
    }
}