nodejs-best-practices

Choosing a Node.js framework requires evaluating deployment targets: use Hono for edge or serverless, Fastify or NestJS for high-performance APIs, and Express for traditional ecosystems. Context-aware selection ensures optimal runtime performance and maintainability.

Layered architecture is the best way to structure Node.js applications for maintainability. By enforcing strict separation of concerns, layered architectures improve testability, reduce coupling, and make codebases easier to reason about across edge and full-stack scenarios.

Handling errors and async patterns securely in Node.js requires robust error handling and security-conscious coding practices. Applying these guidelines reduces risk, improves application resilience, and prevents unhandled promise rejections across serverless and API environments.

Deciding between ESM and CommonJS module systems in Node.js depends on your runtime environment and native TypeScript goals. Evaluating module systems prevents copying patterns blindly and ensures compatibility across edge, serverless, and traditional API deployments.

This Node.js guidance applies to both existing codebases and new projects. It provides decision-making principles to audit framework choices, runtime patterns, and architectural layering, enabling informed refactoring and architecture decisions for current applications.