Many of you come to my site to read the post Step by step: Serilog with ASP.NET Core which I wrote in 2016 and is completely out of date, so with this post I will show you how to setup Serilog to work with your ASP.NET Core 2.2 applications.
Create an ASP.NET Core project#
md aspnet.serilog.sample
cd aspnet.serilog.sample
dotnet new mvcAdd the following dependencies to your project#
dotnet add package Serilog.AspNetCore
dotnet add package Serilog.Extensions.Logging
dotnet add package Serilog.Sinks.ColoredConsoleChange your Program.cs file to look like the following#
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Serilog;
using Serilog.Core;
using Serilog.Events;
namespace aspnet.serilog.sample
{
public class Program
{
public static void Main(string[] args)
{
Log.Logger = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Debug()
.WriteTo.ColoredConsole(
LogEventLevel.Verbose,
"{NewLine}{Timestamp:HH:mm:ss} [{Level}] ({CorrelationToken}) {Message}{NewLine}{Exception}")
.CreateLogger();
try
{
CreateWebHostBuilder(args).Build().Run();
}
finally
{
Log.CloseAndFlush();
}
}
public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseSerilog()
.UseStartup<Startup>();
}
}Inject the logger to your services or controllers#
Change the home controller and log some actions:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using aspnet.serilog.sample.Models;
using Microsoft.Extensions.Logging;
namespace aspnet.serilog.sample.Controllers
{
public class HomeController : Controller
{
ILogger<HomeController> logger;
public HomeController(ILogger<HomeController> logger)
{
this.logger = logger;
}
public IActionResult Index()
{
this.logger.LogDebug("Index was called");
return View();
}
public IActionResult Privacy()
{
return View();
}
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
{
return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
}
}
}Download the complete code here
Hope it helps!