This is a basic project structure to help you to start building your own RESTful web APIs (for Android, IOS, or JavaScript framworks) using Express framework and MongoDB with a good structure practices based on clean MVC Architecture.

• Fundamental of Express: routing, middleware, sending response and more
• Fundamental of Mongoose: Data models, data validation and middleware
• RESTful API including pagination and sorting
• CRUD operations with MongoDB
• Security: encyption, sanitization and more
• Authentication with JWT : login and signup
• Authorization (User roles and permissions)
• Error handling
• Enviroment Varaibles
• handling error outside Express
• Catching Uncaught Exception

• server.js : Responsible for connecting the MongoDB and starting the server.
• app.js : Configure everything that has to do with Express application.
• config.env: for Enviroment Varaiables
• routes -> userRoutes.js: The goal of the route is to guide the request to the correct handler function which will be in one of the controllers
• controllers -> userController.js: Handle the application request, interact with models and send back the response to the client
• models -> userModel.js: (Business logic) related to business rules, how the business works and business needs ( Creating new user in the database, checking if the user password is correct, validating user input data)