Using Node.js and Express, a scalable RESTful API architecture with JWT authentication

Use Node.js and Express.js to design and construct a scalable, production-ready RESTful API. The API should adhere to the most effective methods for performance, modularity, and maintainability.

Add the following prerequisites:

• Project Organization:
  Use a simple and modular folder structure for organizing the codebase (e.g., controllers, routes, models, services, middleware, config).
• Controllers and Routing:
  1. Establish RESTful endpoints with the appropriate division of responsibilities between controllers and routes.
  Middleware
  2. Develop and incorporate unique middleware for authentication, request validation, and logging.
• Verification and Permission:
  Put into practice secure JWT-based authentication, which includes restricted routes, token creation, and verification.
• Handling Errors:
  Create a centralized error-handling system to handle server and application failures uniformly.
• Setting Up the Environment:
  For sensitive data, such as database URIs and secrets, use environment variables.
• Recommended Practices & Scalability:
  Use best practices like async/await, appropriate status codes, input validation, and reusable components to ensure the API is scalable.
• Optional Improvements (if relevant):
  Add rate restriction, API documentation (like Swagger), and database integration (like MongoDB).

Give concise descriptions for each main component together with well-organized, annotated code.