backend-patterns

Automate backend design pattern application to Node.js, Express, and Next.js projects.

Updated Mar 16, 2026

Search Tags:#architecture #middleware #error-handling #nodejs #api-design #backend-patterns

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npx skills add https://github.com/Clean1ines/crm_bot --skill backend-patterns-clean1ines

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: backend-patterns
Source: https://github.com/Clean1ines/crm_bot/tree/main/.agents/skills/ecc/backend-patterns
Command: npx skills add https://github.com/Clean1ines/crm_bot --skill backend-patterns-clean1ines

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides a catalog of proven backend design patterns to help engineers build scalable, maintainable Node.js/Express/Next.js APIs, reducing architectural drift and boilerplate.

Core Features & Use Cases

RESTful and GraphQL API design patterns to structure routes, services, and data access layers.
Middleware, service, repository, and error-handling patterns that improve testability and reliability.
Caching, logging, and observability patterns to support robust production deployments.
Use Case: A team migrating a monolith to a modular, testable API with clear separation of concerns.

Quick Start

Install and apply the backend-patterns guidelines to an existing Node.js backend to adopt the patterns in your API.

Frequently Asked Questions about backend-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I structure a scalable Node.js API with proper separation of concerns?▼

Structure a scalable Node.js API by applying repository, service, and middleware patterns to separate data access, business logic, and routing. This modular architecture improves testability and reduces boilerplate across REST and GraphQL services.

What are the best backend patterns for error handling in Express?▼

The best backend patterns for error handling in Express use centralized middleware to catch and process operational errors. Applying standardized error-handling patterns improves reliability and keeps your API maintainable as the codebase grows.

Does this approach work for migrating a monolithic Node.js application to a modular architecture?▼

Yes, this approach works for migrating a monolithic Node.js application by applying repository and service patterns to decouple dependencies. It guides teams in restructuring routes and data access layers for a modular, testable API.

How do I add caching and observability to a Next.js backend?▼

Add caching and observability to a Next.js backend by implementing dedicated logging and monitoring patterns. These operational patterns support robust production deployments by guiding structured data caching and application metrics.

Can I use these backend design patterns for both REST and GraphQL services?▼

Yes, you can use these backend design patterns for both REST and GraphQL services. The catalog provides API design patterns that structure routes, services, and data access layers effectively across multiple API paradigms.

When should I not use the repository pattern in my Node.js application?▼

You should evaluate avoiding the repository pattern when your Node.js application is a small, simple prototype with minimal data access logic. For such cases, direct database queries may reduce unnecessary boilerplate compared to a fully layered architecture.