1. Initialize a new Node.js project and install Express.js.
2. Define the API routes (GET, POST, PUT, DELETE) for the resources.
3. Implement middleware for JSON parsing, CORS, and authentication.
4. Implement input validation using express-validator.
5. Create error handling middleware to catch and handle errors.
6. Test the API endpoints using Postman or similar tool.
7. Deploy the API to a production environment.