So what is clean architecture?
Let’s say you want to build an app. (After all everyone is building apps these days.) Often the first discussion developers have about it include the following questions:
- What framework should we use?
- What database should we use?
- Is it an Android or iPhone app or both?
Clean architecture allows you to defer the answers to all these questions.
But wait, how do I write this app without knowing the answers to any of these questions? The answer is that you focus on what the ‘app’ does. You focus on the domain. You identify the entities that make up the domain. Then you focus on the interactions (use cases) for the domain.
Now you can use any framework you want to deliver your ‘app’. Now you can use any database/storage you want to persist your ‘app’. Now you can deliver your ‘app’ to any platform, including ones that you haven’t even heard of yet.
Why do I need/want clean architecture?
Because if you are going to say in business for very long, it costs considerably less and gives you the most flexibility.
How do I get there from here?
Do you already have an ‘app’ already that is not based on clean architecture. How can you get to clean architecture? The answer is the same. You identify the entities that make up the domain. Then you extract the interactions (business logic or use cases) that act on the entities. You can do this as dedicated iterations/sprints or you can do it step by step through refactoring.
Are you ready for clean architecture?
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