ASP.NET Core by Patrik

Effective Logging Strategies in ASP.NET Core

Logging is a critical aspect of application monitoring and diagnostics. ASP.NET Core provides flexible logging configuration options to help you balance verbosity and noise across different environments and providers.

This series covers best practices for configuring logging levels, including:

Setting baseline and application-specific log levels
Customizing logging behavior per provider (e.g., Console, Application Insights)
Tailoring logging configurations for different environments (Development, Production, etc.)

Explore the related Snipps below to implement a robust, maintainable logging strategy in your ASP.NET Core applications.

logging

aspnetcore

configuration

environments

providers

Configuring Base and Application-Specific Logging Levels in ASP.NET Core

In ASP.NET Core, you can configure logging levels to control the verbosity of logs across your application and third-party frameworks.

A common pattern is to set a default minimum log level (e.g., Warning) and enable verbose logging (Trace) only for your own application namespace.

Example configuration in appsettings.json or an environment-specific file:

{
  "Logging": {
    "LogLevel": {
      "Default": "Warning",
      "Microsoft": "Warning",
      "System": "Warning",
      "YourAppNamespace": "Trace"
    }
  }
}

"Default": "Warning" sets a baseline for all logs.
"Microsoft" and "System" are explicitly set to Warning to reduce noise from framework logs.
"YourAppNamespace": "Trace" enables detailed logging for your application code.

This ensures your app logs detailed information while keeping system logs concise and manageable.

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