nodejs-expert

Building a scalable Node.js backend API with Express involves using middleware for routing and error handling, leveraging ESM and async/await for clean code, and applying performance optimization best practices to ensure robust request processing and maintainable server logic.

The best way to handle large data processing in Node.js is using streams. Streams efficiently manage file operations and large data chunks by processing data incrementally, preventing memory overload and optimizing application performance during heavy I/O tasks.

Configuring a Node.js application for production deployment involves using PM2 for process management and Docker for containerization. This setup ensures application stability, scalability, and consistent environments across development and production stages.

Yes, this Node.js backend approach fully supports PostgreSQL and Prisma integration. You can connect to a PostgreSQL database and use the Prisma ORM to manage schemas, execute type-safe queries, and streamline database operations within your Express application.

To test Node.js Express APIs using Vitest, implement unit and integration tests that validate routing logic, middleware behavior, and database interactions. Vitest provides a fast framework for asserting API responses and ensuring backend reliability during development.