Inject Serilog's ILogger interface in ASP .NET Core Web API Controller

If you prefer ILogger instead of ILogger<HomeController>, you could try to register ILogger.

Here are two options to use Serialog.Information.

1. Use Log.Logger

   Log.Logger.Information("Information Log from Log.Logger");
   

2. Register ILogger

   //Startup.cs
   services.AddSingleton(Log.Logger);
   
   //Use
   public class HomeController : Controller
   {
       private readonly ILogger _logger;
       public HomeController(ILogger logger)
       {
           _logger = logger;
       }
       public IActionResult Index()
       {
           _logger.Information("Inform ILog from ILogger");
           return View();
       }        
   }
   

You can install Serilog as the logger under the Microsoft logging framework by including the Serilog.Extensions.Logging package and including the following in your app startup:-

public void ConfigureServices(IServiceCollection services)
{
    services.AddLogging(x =>
    {
        x.ClearProviders();
        x.AddSerilog(dispose: true);
    });

    ...

Or, as an alternative to injecting, if you just want a reference to the Serilog logger, Serilog.Log has a static method Log to create a logger...

...
using Serilog;
...

namespace Test.Controllers
{
    public class TestController : Controller
    {
        private readonly static ILogger log = Log.ForContext(typeof(TestController));

        public TestController()
        {
            log.Debug("Test");
        }