ConsoleWithDependencyInjection

1. Add reference packages

   dotnet add package Microsoft.Extensions.DependencyInjection dotnet add package Microsoft.Extensions.Logging dotnet add package Microsoft.Extensions.Logging.Console

2. Add log reference in constructor

public class DemoClass
{
    private readonly ILogger<DemoClass> _logger;

    public DemoClass(ILogger<DemoClass> logger)
    {
        _logger = logger;
    }

    public void TestLog(string log)
    {
        this._logger.LogInformation(log);
    }
}

3. Build services collection

        static void Main(string[] args)
        {
            var serviceCollection = new ServiceCollection();
            ConfigureServices(serviceCollection);
            var serviceProvider = serviceCollection.BuildServiceProvider();

            var demoClass = serviceProvider.GetService<DemoClass>();
            demoClass.TestLog("Hello");
        }

        private static void ConfigureServices(IServiceCollection services)
        {
            services.AddLogging(configure => configure.AddConsole())
                .AddTransient<DemoClass>();

            services.Configure<LoggerFilterOptions>(options => options.MinLevel = LogLevel.Debug);
        }

4. Control logger level

You can set logger level by

services.Configure<LoggerFilterOptions>(options => options.MinLevel = LogLevel.Debug);

or get level from configuration, see lastest file:

Program.cs

Reference

• net-core-console-logging