Flutter Domain Layer

Flutter Domain Layer (summary)

Purpose: Minimal, opinionated guidance and templates for the domain/core layer.

Essentials

• Entities: immutable models and value objects (use equatable for equality).
• Repositories: abstract interfaces (ports) implemented by the data layer.
• Use cases: interactors exposing a call() method.
• Domain exceptions: typed domain errors; map infra errors in the data layer.

Structure

• Suggested layout: lib/domain/entities/, lib/domain/repositories/, lib/domain/usecases/, lib/domain/exceptions.dart
• Keep domain pure (no Dio or data imports).

Details and examples moved to reference docs:

• references/entities.md
• references/repositories.md
• references/usecases.md
• references/exceptions.md
• templates/ — code templates (entity, repository, use case, exceptions)

Quick prompts

• "Scaffold User entity (Equatable), UserRepository interface, GetUser use case, and domain exceptions."
• "Create a GetUser unit test using a fake repository."