Updated Step by step: Serilog with ASP.NET Core
Updated Step by step: Serilog with ASP.NET Core
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2 minute read
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of you come to my site to read the post Step by step: Serilog with ASP.NET Core which I wrote in 2016 and is completely out of date, so with this post I will show you how to setup Serilog to work with your ASP.NET Core 2.2 applications.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 mvc
Add the following dependencies to your project
dotnet add package Serilog.AspNetCore
dotnet add package Serilog.Extensions.Logging
dotnet add package Serilog.Sinks.ColoredConsole
Change 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!