Decoupling with Interfaces
Explore how to apply decoupling principles in clean architecture by using interfaces in Python. Understand how repositories and use cases interact through defined APIs, allowing flexible implementation changes. Learn how PostgreSQL integration supports this design and enhances testing strategies, helping you build modular, maintainable Python applications.
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The clean architecture we’ve built in the previous chapters defines a use case that receives a repository instance as an argument and uses its list method to retrieve the contents. This allows the use case to form a loose coupling with the repository, which is connected only through the API exposed by the object. It isn’t connected to the real implementation. In other words, the use cases are polymorphic with ...