FastAPI Clean Architecture Refactoring

What problem does it solve?

This Skill addresses the issue of bloated FastAPI handlers that mix business logic, database access, and HTTP concerns, leading to code that is difficult to maintain and test.

Core Features & Use Cases

• Layered Architecture: Guides the transformation of monolithic FastAPI applications into a clean, layered architecture (Routers, Services, Repositories).
• Domain-Driven Design: Promotes the use of domain-specific exceptions and handlers for robust error management.
• Use Case: Refactor a FastAPI endpoint that currently handles user registration by directly querying a database and performing complex validation within the handler function, into a structure with thin handlers, dedicated service logic, and a repository for data access.

Quick Start

Apply the FastAPI Clean Architecture Refactoring skill to the provided user registration endpoint code.