backend-patterns

What This Skill Does

The backend-patterns skill provides a robust architectural framework for developers working with Node.js, Express, and Next.js. It acts as a knowledge-based companion that offers standardized patterns for server-side logic, API design, and database interaction. By leveraging industry-standard structures like the Repository pattern and Service-layer abstraction, the skill helps developers decouple their business logic from specific data providers (such as Supabase or Prisma). It also includes implementations for request-response middleware, ensuring that cross-cutting concerns like authentication are handled consistently across all API routes.

Installation

To integrate this skill into your OpenClaw environment, execute the following command in your terminal:

clawhub install openclaw/skills/skills/charmmm718/backend-patterns

Use Cases

This skill is ideal for teams building scalable microservices or monolithic APIs who want to avoid spaghetti code. Use it when you are:

• Designing a new RESTful API surface and need to ensure compliance with resource-based routing standards.
• Transitioning from monolithic functions to a layered architecture (Repository, Service, Controller).
• Optimizing database queries for high-traffic endpoints by implementing caching or index-aware fetching strategies.
• Securing API routes using modular middleware wrappers in Next.js or Express.

Example Prompts

• "Can you refactor my existing Express route to use a repository pattern for my Supabase database calls?"
• "I need to implement a secure middleware for my Next.js API routes that verifies JWT tokens. Provide a clean implementation."
• "What are the best practices for handling pagination and filtering on a resource-based GET endpoint in an Express app?"

Tips & Limitations

• Tip: When using the Repository pattern, always define TypeScript interfaces for your Data Transfer Objects (DTOs) to ensure type safety across your service layer.
• Tip: Use the middleware pattern to keep your core controller logic clean and focused on business rules rather than authentication or logging.
• Limitation: This skill provides architectural guidance and code scaffolding; it does not replace the need for writing unit tests for your business logic.
• Limitation: Performance optimization recommendations are generalized; always benchmark your specific database queries under actual load.