Logging doesnt work inside controller - Serilog ASP.NET Core 3.1

Question

I have a ASP .NET Core 3.1 web API and I'm trying to use Serilog, but for some reason any logs I create inside of my controllers don't log anything. Logging works when I log from the Startup class or through Middleware like UseSerilogRequestLogging().

My Program class:

public 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") ?? "Development"}.json", optional: true)
        .AddEnvironmentVariables()
        .Build();

        public static void Main(string[] args)
        {
            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(_configuration)
                .Enrich.WithMachineName()
                .Enrich.FromLogContext()
                .WriteTo.Console()
                .CreateLogger();

            try
            {
                Log.Information("Application Starting.");
                CreateHostBuilder(args).Build().Run();
            }
            catch (Exception ex)
            {
                Log.Fatal(ex, "The Application failed to start.");
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .UseSerilog()
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
    }

My controller:

        private readonly IJobServiceRepository _jobServiceRepository;
        private readonly ILogger _logger;

        /// <summary>
        /// Constructor for this API controller
        /// </summary>
        public JobsController(IJobServiceRepository jobServiceRepository, ILogger<JobsController> logger)
        {
            _jobServiceRepository = jobServiceRepository ??
                throw new ArgumentNullException(nameof(jobServiceRepository));
            _logger = logger ??
                throw new ArgumentNullException(nameof(logger));
            _logger.LogInformation("TEST");
        }

My appsettings.json:

{
  "Serilog": {
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "Microsoft": "Warning",
        "System": "Warning"
      }
    }
  },
  "AllowedHosts": "*"
}

What could be wrong?

Answer 1

I think in your controller class, where you are creating a logger instance in the second line, i.e

private readonly ILogger _logger

replace ILogger with ILogger<"Your controller name">, which is JobsController in your case.

Answer 2

Everything looks good in Program.cs class.

In Program.cs you configure Serilog and use it Log.Information("Application Starting."); - as a result it works

You can also use it in JobsController Log.Information("Message");