Samples for structured logging in .NET 5.0

Program.cs

using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System.Collections.Generic;

Host.CreateDefaultBuilder()
    .ConfigureWebHostDefaults(whb => whb.Configure(app =>
    {
        var logger = app.ApplicationServices.GetRequiredService<ILogger<Foo>>();

        IList<string> list = new[] { "a", "b", "c" };
        logger.LogCritical("The list has these elements: {list}", list);

        string name = null;
        logger.LogCritical("My name is {name}", name);
    }))
    .Build().Run();

class Foo { }

Output: