Scaleup Guide
Clean Architecture in Flutter: Folder Structure Every Developer Should Follow
Direct Answer
This guide gives a simple overview of clean architecture in flutter: folder structure every developer should follow. If you need help turning the idea into a website, app, or business system, the related Scaleup Infotech services are listed below.
Clean Architecture separates your code into independent layers. This ensures that your UI logic doesn't get tangled with your business logic or data sources.
The Three Layers
1. Presentation: Widgets, State Management (Bloc/Riverpod).
2. Domain: Entities, Usecases, Repository Interfaces (Pure Dart, no Flutter dependencies).
3. Data: API calls, Local Database, Repository Implementation.
lib/
├── core/ # Shared utils, errors, constants
├── features/
│ ├── authentication/
│ │ ├── data/
│ │ │ ├── datasources/
│ │ │ ├── models/
│ │ │ └── repositories/
│ │ ├── domain/
│ │ │ ├── entities/
│ │ │ ├── repositories/
│ │ │ └── usecases/
│ │ └── presentation/
│ │ ├── bloc/
│ │ ├── pages/
│ │ └── widgets/
└── main.dartBy following this structure, you can swap out your database (e.g., from Firebase to SQL) by only changing the Data layer, without breaking your UI.