ASP.NET Core Logging - Filter out System items

Question

I have recently set up Serilog to handle my logging activities to the database. However, when I started it up, I noticed plenty of System and Microsoft activities filling up the rows. I have tried to add several overrides in my Serilog filters but some like Executed action method and Db Command remains. What do I need to override to remove them from my logs?

My appsettings.json

"Serilog": {
    "MinimumLevel": "Information",
    "Override": {
      "Microsoft": "Error",
      "Microsoft.EntityFrameworkCore.Storage.IRelationalCommandBuilderFactory": "Error",
      "Microsoft.EntityFrameworkCore.Database.Command": "Error",
      "Microsoft.AspNetCore.Hosting.Internal.WebHost": "Error",
      "ToDoApi": "Error",
      "Engine": "Error",
      "System": "Error"
    },

JianYA · Accepted Answer · 2018-10-02 04:53:46Z

4

I found out a much better way. In my Program where I configure the logger:

Log.Logger = new LoggerConfiguration()
               .ReadFrom.Configuration(Configuration)
               .Filter.ByExcluding(Matching.FromSource("Microsoft"))
               .Filter.ByExcluding(Matching.FromSource("System"))
               .Enrich.FromLogContext()
               .CreateLogger();

This way I can control what gets logged.

answered Oct 2, 2018 at 4:53

JianYA

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Comments

Nicholas Blumhardt · Accepted Answer · 2018-10-05 22:59:15Z

2

Your MinimumLevel configuration section isn't quite right: Override should be under it. You need:

  "Serilog": {
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "Microsoft": "Error",
        "ToDoApi": "Error",
        "Engine": "Error",
        "System": "Error"
      }
    }
  }

answered Oct 5, 2018 at 22:59

Nicholas Blumhardt

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