Fixes & Improvements for Express.js Routing and Error Handling

Project Goal: Refactor the Express.js backend to ensure clear route organization and implement consistent error handling across the application. Key Fixes: Modular Route Structure Split monolithic route file into multiple modules based on feature domains (e.g., authRoutes, userRoutes, reportRoutes) Created a central router/index.js to load all route modules in a clean and scalable way Error Handling Middleware Implemented centralized error-handling middleware using app.use(errorHandler) Now all thrown errors and async failures return standardized JSON responses with correct HTTP status codes Validation Improvements Integrated express-validator to validate input data (e.g., email, password length) directly in route definitions Added automatic error return if validation fails, improving frontend-backend integration Authorization Middleware Improved the structure of authMiddleware and added role-based access control logic Ensures that protected routes are only accessible to authorized users (e.g., admin) Improved Async Flow Wrapped all async route handlers in try-catch blocks or passed through custom asyncHandler() utility to prevent unhandled promise rejections Logging and Debugging Added request logging and clearer debug messages for easier monitoring and faster debugging Results: The backend is now more maintainable, scalable, and secure All routes are cleanly separated, and errors are consistent and informative Ready for production deployment or further API expansion Apply Job! Apply to this Job