using System;

using Microsoft.Extensions.DependencyInjection;

using Microsoft.Extensions.Logging;

using Serilog;

using Serilog.Templates;

​

Log.Logger = new LoggerConfiguration()

      .Enrich.FromLogContext()

      .WriteTo.Console(new ExpressionTemplate("{ {datetime: @t, message: @m, level: @l, messageproperties: @p, exception: @x} }\n"))

      .CreateLogger();

​

var serviceProvider = new ServiceCollection()

//  .AddLogging(configure => configure.AddConsole())

//  .AddLogging(configure => configure.AddJsonConsole())

    .AddLogging(configure => configure.AddSerilog())    

    .BuildServiceProvider();

var loggerFactory = serviceProvider.GetRequiredService<ILoggerFactory>();

var logger = loggerFactory.CreateLogger("mylogger");

try {

    throw new ArgumentNullException("someMethod received a null argument!");

}

catch (Exception e ){

    logger.LogError(e, "Exception throw as example.");

}

logger.LogError ("End processing HTTP request after {@ElapsedMilliseconds}ms - {@StatusCode}", 800, 200);