nodejs-best-practices

Choose your Node.js framework by matching deployment targets, team experience, and performance constraints against options like Hono, Fastify, Express, or NestJS to reduce architectural fragility and security risk.

Handle async patterns in Node.js by selecting appropriate async/await or Promise strategies and offloading heavy tasks to worker threads to prevent event-loop blocking and reduce API fragility.

Implement centralized error handling and boundary validation in Node.js by applying layered service and repository architectures that format errors consistently and validate inputs at system boundaries.

Your Node.js API architecture needs a security-first checklist for production to systematically identify vulnerabilities, validate boundaries, and ensure safe deployment under expected traffic profiles.

Trade-offs between NestJS and Fastify for high-traffic Node.js applications depend on your team's need for structured opinionated architecture versus minimal overhead and raw performance optimization.

Use worker threads instead of async patterns in Node.js when CPU-bound tasks risk blocking the event loop, whereas async/await and Promise patterns suffice for I/O-bound operations.