Getting started with .NET Core 2 Console application

Gian Marco Gherardi edited this page Nov 25, 2018 · 16 revisions

⚠️ ASP.NET Core users should use the ASP.NET Core 2 tutorial

ℹ️ See also example in GitHub

How to use for .NET Core with csproj (VS2017 only) - demonstrated with a Console application

0. Create a new .NET Core console project

In Visual Studio 2017, using .NET 4.6.1+ or .NET Core 2


1. Add dependency in csproj manually or using NuGet



    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="1.1.0" />
    <PackageReference Include="NLog" Version="4.5.0" />
    <PackageReference Include="NLog.Extensions.Logging" Version="1.0.0" />

2. Create a nlog.config file.

Create nlog.config (lowercase all) file in the root of your project.

We use this example:

<?xml version="1.0" encoding="utf-8" ?>
<!-- XSD manual extracted from package NLog.Schema:>
<nlog xmlns="" xsi:schemaLocation="NLog NLog.xsd"
      internalLogLevel="Info" >

  <!-- the targets to write to -->
    <!-- write logs to file -->
    <target xsi:type="File" name="target1" fileName="c:\temp\console-example.log"
            layout="${date}|${level:uppercase=true}|${message} ${exception}|${logger}|${all-event-properties}" />
    <target xsi:type="Console" name="target2"
            layout="${date}|${level:uppercase=true}|${message} ${exception}|${logger}|${all-event-properties}" />


  <!-- rules to map from logger name to target -->
    <logger name="*" minlevel="Trace" writeTo="target1,target2" />


More details of the config file are here.

If you like to include other targets or layout renderers, check the Platform support table, as there is a limited set implemented. Check the column NetStandard. To read more about NetStandard, see the docs from Microsoft

3. Update your program

3.1 Create your runner class

 public class Runner
     private readonly ILogger<Runner> _logger;

     public Runner(ILogger<Runner> logger)
         _logger = logger;

     public void DoAction(string name)
         _logger.LogDebug(20, "Doing hard work! {Action}", name);


3.2 Setup the Dependency injector (DI) container

private static ServiceProvider BuildDi()
    return new ServiceCollection()
        .AddLogging(builder => {
            builder.AddNLog(new NLogProviderOptions {
                CaptureMessageTemplates = true,
                CaptureMessageProperties = true

3.3 Update your main()

First create the DI container, then get your Runner and start running!

static void Main(string[] args)
    var servicesProvider = BuildDi();
    var runner = servicesProvider.GetRequiredService<Runner>();


    Console.WriteLine("Press ANY key to exit");

    // Ensure to flush and stop internal timers/threads before application-exit (Avoid segmentation fault on Linux)

4 Example output

On screen: image

In file:

2017/10/16 23:08:46.479|DEBUG|Doing hard work! Action1 |ConsoleExample.Runner|Action=Action1, EventId_Id=20, EventId_Name=, EventId=20
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