Dfyjkt

It seems that Microsoft are really trying to shove DI down your throat with .NET Core, and I'm not sure why, but frankly my console app is small and simple and I just don't want to build a whole DI container just to do some simple logging. How can I do logging in .NET Core without using DI? Everything I've read assumed you're going to use .NET Core's built-in logging architecture which obviously requires DI, but there must be a way to just do it without DI using a static variable on the class?

If you want to do it yourself you will need to instantiate a LoggerFactory instance somewhere and configure what providers you want. Then you just need to call CreateLogger to create a instance or use new Logger<T>(ILoggerFactory) to create a logger.

using Microsoft.Extensions.Logging;

static class MyLogger 

 public static ILoggerFactory LoggerFactory get;

 static MyLogger() 
 LoggerFactory = new LoggerFactory();
 LoggerFactory.AddConsole();
 


public MyClass 
 private readonly ILogger _logger = new Logger<MyClass>(MyLogger.LoggerFactory);

What I ended up doing was using NLog but rather than using their .NET Core DI extensions, I just included the main NLog NuGet package, manually creating my own NLog.config file, and followed the tutorial to GetCurrentClassLogger(), creating that as a static member of my class, then directly used that for logging. This is quite a simple setup and has no need for DI. NLog should probably document it better.