A practical example of clean architecture using Node.js Express.

Clean architecture with Node.js and Express is like building a house – we start with the foundation of principles and then add the missing parts, ensuring flexibility and independence. It’s all about handling business rules and logic in a clear and organized way, just like the layers of a cake. And with proper testing, it’s like having a solid blueprint for success. The result? A robust and scalable application that stands the test of time. 🏗️

Key Takeaways 🎯

• Clean architecture principles in Node.js Express
• Practical example of implementing clean architecture
• Handling business rules and entities in the architecture

Architecture Diagram 📐

In this episode, the architecture principles are discussed in relation to solving business rules and entities. The main focus is on creating the product entity and implementing business logic.

Business Rule Entity Table

Implementing the Architecture 💻

While handling the logic, a directory is created to handle business rules, which are essential for product functionality. The implementation includes creating the product interactor and product controller.

Product Interactor Functions

1. Handling business logic
2. Performing business rules
3. Assigning parameters

Controller and Routes 🚀

The product functionality is handled by the controller, which includes handling communications and updating product details.

Product Routes

• GET /product
• POST /product
• PUT /product
• DELETE /product

Repository and Dependency Injection 📝

The product repository is implemented to handle specific functionalities, ensuring clean architecture and testability.

Product Repository

• Manages product data
• Implements repository functionalities

Testing and Dependency Injection 🧪

Testing the product functionality is achieved through dependency injection and the use of a global symbol registry key.

Testing Process

1. Create a new container
2. Bind all dependencies
3. Test the product functionality
4. Verify the results

This comprehensive approach ensures the architecture’s testability and flexibility.

Conclusion ✨

In conclusion, this episode provides a practical example of implementing clean architecture principles using Node.js Express. The step-by-step guide covers handling business rules and entities, implementing the architecture, managing repositories, testing, and ensuring testability and flexibility.

Key Takeaways

• Practical example of implementing clean architecture in Node.js Express
• Managing business rules, entities, and testing
• Ensuring testability and flexibility through repository management and dependency injection

This summary highlights the main points of the text provided, detailing the architecture, implementation, and testing processes for clean architecture with Node.js Express. The practical examples and step-by-step guide aim to provide a clear understanding of the topic.