Skip to main content

LoggingBehavior

Namespace: RA.Utilities.Feature.Behaviors

LoggingBehavior is an implementation of the IPipelineBehavior interface. Its primary purpose is to act as a "middleware" within your CQRS pipeline to automatically log requests and their corresponding responses.

It elegantly solves the cross-cutting concern of logging by intercepting every command and query that is sent through the mediator. This provides several key benefits:

  1. Reduces Boilerplate: You no longer need to add logging statements to the beginning and end of every single IRequestHandler. The behavior handles it for you.

  2. Enforces Consistency: It ensures that every request is logged in a uniform, structured format, making your logs predictable and easier to analyze.

  3. Provides Rich Diagnostics: By using structured logging ({@Request}, {@Response}), it captures the entire request and response objects, not just a simple message. This is incredibly valuable for debugging and tracing the flow of data through your system.

  4. Separation of Concerns: It keeps your business logic (in the handlers) clean and completely separate from the infrastructure concern of logging.

The file LoggingBehavior.cs provides two versions of the class to handle both requests that return a value (LoggingBehavior<TRequest, TResponse>) and those that do not (LoggingBehavior<TRequest>).