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of you come to my site to read the post Step by step: Serilog with ASP.NET Core which I wrote in 2016 and is completely out of date, so with this post I will show you how to setup Serilog to work with your ASP.NET Core 2.2 applications.
1. Create an ASP.NET Core project
md aspnet.serilog.sample cd aspnet.serilog.sample dotnet new mvc 2. Add the following dependencies to your project
dotnet add package Microsoft.AspNetCore.App dotnet add package Microsoft.AspNetCore.Razor.Design dotnet add package Serilog.AspNetCore dotnet add package Serilog.Extensions.Logging dotnet add package Serilog.Sinks.ColoredConsole 3. Change your Program.cs file to look like the following
public class Program { public static void Main(string[] args) { // Create the logger 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 { // Close and flush the log. Log.CloseAndFlush(); } } public static IWebHostBuilder CreateWebHostBuilder(string[] args) => WebHost.CreateDefaultBuilder(args) .UseSerilog() // Set serilog as the loggin provider. .UseStartup<Startup>(); } 4. Inject the logger to your services or controllers
Change the home controller and log some actions:
public class HomeController : Controller { // Logger instance ILogger<HomeController> logger; // Logger is injected into the controller public HomeController(ILogger<HomeController> logger) { this.logger = logger; } public IActionResult Index() { // Log something 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!
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