System Design and SOLID principles with node js design patterns

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System design in Node.js involves applying SOLID principles and design patterns for scalable and maintainable applications.

Use SOLID principles (Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion) to design modular and flexible systems.
Apply design patterns like MVC, Factory, Singleton, Observer, etc. to address common design problems and improve code reusability.
Utilize Node.js features like event-driven architecture, non-blocking I/O, and asynchronous programming for high-performance applications.
Consider scalability, fault tolerance, and security aspects while designing the system architecture.
Example: Implementing a RESTful API using Express.js with separate modules for handling routes, controllers, and models following SOLID principles.

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