backend-dev-guidelines

What problem does it solve?

Developing scalable, maintainable, and secure backend applications requires adherence to best practices and architectural patterns. This Skill provides a comprehensive, opinionated guide to building Node.js/Express/TypeScript backends, eliminating guesswork and ensuring high-quality code.

Core Features & Use Cases

• Layered Architecture: Implements a clear separation of concerns (Routes, Controllers, Services, Repositories) for modular, testable, and easily maintainable code.
• Robust Error Handling: Standardized error handling with custom AppError classes and global middleware, ensuring consistent and informative error responses.
• Middleware Patterns: Guidance on validation, authentication, and error handling middleware for Express, streamlining common backend tasks.
• Database Access: Best practices for data access using a repository pattern (e.g., with Prisma), abstracting database specifics for cleaner service logic.
• Use Case: A developer is tasked with creating a new user authentication API. This skill provides the blueprint for structuring the project, implementing routes, controllers, services, repositories, and handling validation and errors, accelerating development and ensuring consistency.

Quick Start

Generate a Node.js/Express/TypeScript backend structure for a user management API, including routes, controllers, services, and repositories for CRUD operations on users.