"Flutter Clean Architecture Template: Copy-Paste Structure"
Flutter clean architecture template: feature-based folders, domain/data/presentation layers, use cases, get_it wiring, and a copy-paste Auth example.
Every Flutter project starts with lib/main.dart and good intentions. Six months later it's a 3,000-line main.dart with API calls inside button handlers, and changing one screen breaks three others. This Flutter clean architecture template is the structure I reach for instead: feature-based folders, three clear layers, and a worked Auth example you can copy into a real Flutter 3.x project today. This isn't theory. You'll get the exact folder tree, the entity/repository/use-case/data-source files for one feature, and the dependency-injection wiring that holds it together. Clone the shape, rename the feature, repeat. What you'll learn The copy-paste folder tree: lib/core + lib/features/<feature>/{data,domain,presentation} Feature-based folder structure vs layer-based (and why features win) The three layers: domain, data, presentation — what lives where Entities, repository contracts, use cases, models, and data sources Whether you actually need use cases (the honest answer) Wiring it all with get_it dependency injection Clean architecture vs MVVM in Flutter A complete Auth feature walkthrough with runnable code Flutter Clean Architecture Template: The Full Folder Tree Here's the template. core holds cross-cutting concerns; each feature is self-contained with its own three layers: lib/ ├── core/ │ ├── di/ │ │ └── injection.dart # get_it registration │ ├── error/ │ │ └── failures.dart # Failure types (domain errors) │ ├── network/ │ │ └── network_info.dart # connectivity checks │ └── widgets/ │ └── loading_view.dart # shared widgets ├── features/ │ └── auth/ │ ├── data/ │ │ ├── datasources/ │ │ │ └── auth_remote_data_source.dart │ │ ├── models/ │ │ │ └── user_model.dart │ │ └── repositories/ │ │ └── auth_repository_impl.dart │ ├── domain/ │ │ ├──…