nestjs-best-practices

Comprehensive best practices guide for NestJS applications. Contains 40 rules across 10 categories, prioritized by impact to guide automated refactoring and code generation. Reference these guidelines when: Read individual rule files for detailed explanations and code examples: Each rule file contains: For the complete guide with all rules expanded: AGENTS.md - Writing new NestJS modules, controllers, or services - Implementing authentication and authorization - Reviewing code for architecture and security issues - Refactoring existing NestJS codebases - Optimizing performance or database queries - Building microservices architectures - arch-avoid-circular-deps - Avoid circular module dependencies - arch-feature-modules - Organize by feature, not technical layer - arch-module-sharing - Proper module exports/imports, avoid duplicate providers - arch-single-responsibility - Focused services over "god services" - arch-use-repository-pattern - Abstract database logic for testability - arch-use-events - Event-driven architecture for decoupling - di-avoid-service-locator - Avoid service locator anti-pattern - di-interface-segregation - Interface Segregation Principle (ISP) - di-liskov-substitution - Liskov Substitution Principle (LSP) - di-prefer-constructor-injection - Constructor over property injection - di-scope-awareness - Understand singleton/request/transient scopes -...