Net.Core Logging

Two examples of logging in ASP.Net Core. At first, in program.cs file add the following code to set logging (this is my setting):

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
    WebHost.CreateDefaultBuilder(args)
        .ConfigureLogging(logging =>
        {
            logging.ClearProviders();
            logging.SetMinimumLevel(LogLevel.Trace);
            logging.AddDebug();
            logging.AddEventSourceLogger();
        })
        .UseStartup<Startup>();

Now you can decide which provider to use:

• NLog

After installing the NuGet package. Edit nlog.config file to set the local file path ("D:" in my case). In the main procedure, instantiate the NLog, by indicating the Nlog config file:

  var logger = NLog.Web.NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger();
  

The logging file will be saved in the path you set in the config file.

• Elmah

After installing the NuGet package, add in configure method in startup.cs the following instruction:

app.UseElmah();

The logging result will be shown in the page https://yoururl/elmah.