[Verse 1] Once upon a time there was a messy code Database calls scattered down every road UI talking straight to data files Business logic mixed in tangled piles Then a wise developer said with a grin "Let's build our house from outside in" [Chorus] Clean Architecture, layers so neat Core in the center, dependencies sweet Flow inward only, that's the key Outside depends on inside, can't you see Testable, flexible, maintainable too Clean Architecture will carry you through [Verse 2] Picture circles like a target board Business rules sit at the core Application layer wraps around Interface adapters can be found Frameworks and drivers on the outside ring Never let the outer layers pull the strings [Chorus] Clean Architecture, layers so neat Core in the center, dependencies sweet Flow inward only, that's the key Outside depends on inside, can't you see Testable, flexible, maintainable too Clean Architecture will carry you through [Bridge] Dependency Inversion is the secret sauce High level modules are always the boss Don't depend on concrete things you see Abstractions set your code modules free Interfaces point the arrows around Stable foundations, that's what we've found [Verse 3] When you need to swap your database out Clean boundaries leave no doubt Mock your interfaces for every test Independent deployment at its best Uncle Bob showed us the way Clean Architecture saves the day [Chorus] Clean Architecture, layers so neat Core in the center, dependencies sweet Flow inward only, that's the key Outside depends on inside, can't you see Testable, flexible, maintainable too Clean Architecture will carry you through [Outro] From the outside in, dependencies flow Clean and clear, watch your system grow Invert those deps, keep it clean Best architecture you've ever seen
← Domain-Driven Design Basics | Introduction to Distributed Systems →