readme.md

Use Serilog in CMS12

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appsettings.json

{
  "Serilog": {
    "Using": [ "Serilog.Sinks.File" ],
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "Microsoft": "Warning",
        "Microsoft.Hosting.Lifetime": "Information",
        "EPiserver": "Information",
        "EPiServer.Commerce": "Debug"
      }
    },
    "WriteTo": [
      {
        "Name": "File",
        "Args": {
          "path": "./logs/log-.txt",
          "rollingInterval": "Day"
        }
      }
    ],
    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ],
    "Destructure": [
      {
        "Name": "ToMaximumDepth",
        "Args": { "maximumDestructuringDepth": 4 }
      },
      {
        "Name": "ToMaximumStringLength",
        "Args": { "maximumStringLength": 100 }
      },
      {
        "Name": "ToMaximumCollectionCount",
        "Args": { "maximumCollectionCount": 10 }
      }
    ],
    "Properties": {
      "Application": "Core Commerce"
    }
  }
  // Other configuration
}

program.cs

using System;
    using System.IO;

    using Microsoft.AspNetCore.Hosting;
    using Microsoft.Extensions.Configuration;
    using Microsoft.Extensions.Hosting;

    using Serilog;

    public class Program
    {
        public static IConfiguration Configuration { get; } = 
            new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appSettings.json", false, true)
            .AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Development"}.json", true)
            .AddEnvironmentVariables()
            .Build();

        public static IHostBuilder CreateHostBuilder(string[] args, bool isDevelopment)
        {
            if (isDevelopment)
            {
                return Host.CreateDefaultBuilder(args: args)
                    .ConfigureCmsDefaults()
                    .UseSerilog()
                    .ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup<Startup>(); });
            }

            return Host.CreateDefaultBuilder(args: args)
                .ConfigureCmsDefaults()
                .UseSerilog()
                .ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup<Startup>(); });
        }

        public static int Main(string[] args)
        {
            string environment = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
            bool isDevelopment = environment == Environments.Development;

            if (isDevelopment)
            {
                // Development configuration
            }

            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(configuration: Configuration)
                .CreateLogger();

            Log.Information("Starting up!");

            Log.Information("Logging enabled");
            try
            {
                CreateHostBuilder(args: args, isDevelopment: isDevelopment).Build().Run();
                Log.Information("Stopped cleanly");
                return 0;
            }
            catch (Exception ex)
            {
                Log.Fatal(exception: ex, "An unhandled exception occured during bootstrapping");
                return 1;
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }
    }