NLog.StructuredLogging

<Query Kind="Program">
  <NuGetReference>Newtonsoft.Json</NuGetReference>
  <NuGetReference Version="4.5.0-alpha01" Prerelease="true">NLog</NuGetReference>
  <Namespace>NLog</Namespace>
  <Namespace>NLog.Config</Namespace>
  <Namespace>NLog.Targets</Namespace>
  <Namespace>Newtonsoft.Json</Namespace>
</Query>

void Main()
{
	//Setup NLog configurations
	Init();

	//Write Logs inside methods
	SampleMethod(
	  new InputData { AAA = "abc", BBB = 300, CCC = 0.123f },
	  new InputData { }
	);
}

private static NLog.ILogger logger;
public static void Init()
{
	var config = new LoggingConfiguration();
	var consoleTarget = new ConsoleTarget
	{
		Layout = @"${longdate} [${uppercase:${level:padding=-5}}] ${message}",
	};
	config.AddTarget("console", consoleTarget);
	config.LoggingRules.Add(new LoggingRule("*", LogLevel.Debug, consoleTarget));
	LogManager.Configuration = config;

	logger = NLog.LogManager.GetCurrentClassLogger();
}



public OutputData SampleMethod(InputData data1, InputData data2)
{
	//Write method start logs
	logger.Info("Start method: {method}...", nameof(SampleMethod));
	logger.Debug("  InputArgs: {Args}", new { data1, data2 });

	//Get test data
	var sw = Stopwatch.StartNew();
	var result = GetData();
	Thread.Sleep(123);
	
	//Write method completion logs
	logger.Debug("  Results: {Result}", result);
	logger.Info("Completed method: Elapsed {elepsed} [ms]", sw.ElapsedMilliseconds);

	return result;
}

public OutputData GetData()
{
	return new OutputData
	{
		AAA = "1",
		BBB = 2,
		CCC = 3.456f
	};
}

#region Sample Models

public class BaseModel
{
	public override string ToString()
	{
		//Use Json.NET serializer
		return JsonConvert.SerializeObject(this);

		//Use NLog Json serializer
		//return DefaultJsonSerializer.Instance.SerializeObject(this);
	}
}
public class InputData : BaseModel
{
	public string AAA { get; set; }
	public int BBB { get; set; }
	public float CCC { get; set; }
}

public class OutputData : BaseModel
{
	public string AAA { get; set; }
	public int BBB { get; set; }
	public float CCC { get; set; }
}
#endregion