configure serilog using default host builder in csharp

To configure Serilog using the default host builder in a .NET Core application, follow these steps:

1. Add the Serilog package to your project. You can do this via the Package Manager Console or the NuGet package manager UI.

main.cs
Install-Package Serilog
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2. In your Program.cs file, import the Serilog namespace and add the following code to the CreateHostBuilder method:

main.cs
using Serilog;

public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .UseSerilog((context, configuration) =>
        {
            configuration.ReadFrom.Configuration(context.Configuration);
        })
        .ConfigureWebHostDefaults(webBuilder =>
        {
            webBuilder.UseStartup<Startup>();
        });
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This code configures the host builder to use Serilog as the logging provider and reads logging configuration from your app's appsettings.json or other configuration sources.

3. In your appsettings.json file or other configuration source, add a Serilog section to configure the logging behavior. For example, the following configuration logs to the console with the default Serilog configuration:

{
  "Serilog": {
    "MinimumLevel": "Debug",
    "WriteTo": [
      {
        "Name": "Console"
      }
    ],
    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ]
  }
}
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This configuration sets the minimum log level to Debug, configures Serilog to write logs to the console, and adds properties to log events from the log context, machine name, and thread ID.

With these steps, you have configured Serilog to use the default host builder in your .NET Core application.