action-controller

Rails controllers use before_action filters to manage authentication and apply strong parameters for secure data handling. This approach ensures predictable behavior across RESTful actions and standardizes request routing.

API controllers handle rendering and redirects by returning structured responses. Use specific rendering strategies and error handling patterns to ensure reliable API communication and consistent status responses across Rails applications.

Rails controllers require before_action filters when you need to run authentication hooks or set up shared variables before executing actions. They ensure secure and consistent request processing across RESTful endpoints.

Compose Rails controllers using concerns, service objects, and query objects to separate business logic from routing. This pattern maintains clean code structure and improves long-term maintainability across controller files.

The Rails controller pattern supports both API and web app responses through distinct rendering strategies. It handles error management, redirects, and authentication hooks for reliable HTML views and structured API data.

Rails strong parameters require explicit permitting of nested attributes within controller actions. Check your parameter handling structure to ensure nested hashes are correctly allowed through the permitted params filter.