refactor:flask

What problem does it solve?

Monolithic Flask apps with fat route handlers and global app instances are hard to maintain, test, and extend. This Skill guides refactoring toward a modular architecture using the application factory pattern, Blueprints, and a service layer to separate concerns and improve testability.

Core Features & Use Cases

• Application Factory Pattern: Create configurable app instances for testing and multiple environments.
• Blueprint-based Organization: Group routes by domain for maintainability and scalability.
• Service Layer: Move business logic out of views into focused services for reusability.
• Centralized Error Handling: Standardize error responses and reduce duplication. Use Case: Convert a monolithic Flask app into a factory-created app with blueprints and services, then add unit tests around the service layer.

Quick Start

Initialize a Flask project using create_app(config_name), register blueprints, and move business logic into a dedicated service layer.