nodejs-express-expert

To build a scalable Node.js Express backend, structure your application into modular routes, controllers, services, and DTOs. Use TypeScript for strict typing, Zod for validation, and parameterized queries for MSSQL integration to ensure production-grade REST APIs.

JWT authentication middleware in an Express REST API validates user tokens on incoming requests. It secures endpoints by verifying token signatures and payloads before routing to protected controllers, ensuring standardized authorization across your backend.

Yes, you can map .NET WebAPI controllers and services to Express patterns. This Skill translates enterprise .NET concepts into modular Express components, allowing you to migrate existing architectures into modern, scalable TypeScript backends.

The best way to validate DTOs in a TypeScript Express application is using Zod. It enforces strict typing and input validation at the API boundary, ensuring clear frontend contracts and preventing invalid data from reaching your services.

Your Node.js REST API needs centralized error handling with AppError to catch and format operational errors consistently. This prevents unhandled promise rejections and ensures standardized error response formats across all endpoints.

Yes, this approach supports environment-based configuration for MSSQL connection pooling. It securely manages database credentials and connection parameters via environment variables, enabling robust integration across different deployment stages.