nodejs-best-practices

Node.js architecture and framework selection guidance based on deployment context and project requirements. Principles and decision-making for Node.js development in 2025. Learn to THINK, not memorize code patterns. Use this skill when making Node.js architecture decisions, choosing frameworks, designing async patterns, or applying security and deployment best practices. This skill teaches decision-making principles , not fixed code to copy. Before implementing: Remember : Node.js best practices are about decision-making, not memorizing patterns. Every project deserves fresh consideration based on its requirements. - Framework decision tree covers Hono (edge/serverless), Fastify (performance), NestJS (enterprise), and Express (legacy), with selection criteria tied to cold start time, ecosystem size, and team experience - Covers layered architecture principles (controller, service, repository), async patterns (async/await vs Promise.all/allSettled), and centralized error handling with appropriate HTTP status codes - Includes validation strategies, security checklist (input validation, parameterized queries, rate limiting, CORS), and testing priorities for critical paths and edge cases - Teaches decision-making principles rather than fixed patterns; emphasizes asking users about preferences, considering deployment targets, and avoiding common anti-patterns like sync methods and...