service-layer-extractor

What problem does it solve?

This Skill addresses the issue of "fat controllers" or monolithic code blocks by refactoring business logic out of route handlers into a dedicated, testable service layer. This improves code organization, maintainability, and testability.

Core Features & Use Cases

• Separation of Concerns: Clearly divides responsibilities between routing, business logic, and data access.
• Enhanced Testability: Enables unit testing of business logic independently of HTTP concerns.
• Dependency Injection: Facilitates cleaner management of service dependencies.
• Use Case: Refactoring a large Express.js application where controllers contain significant business logic, making them difficult to test and maintain.

Quick Start

Use the service-layer-extractor skill to refactor the provided controller code into a service layer.