README.md

Crisper

This is a simple and easy-to-use dependency injection container. It makes easy to implement a dependency injection pattern with loosely coupled components. It does not replace a complex dependency injection framework like Dagger, but it provides the basics that most apps need.

Feature

• Register dependencies using Module
• Support of multiple modules with scopes
• Create factory instances
• Create lazily-computed instance
• Support tagged types
• Detect circular dependencies
• Getting instances from anywhere, including Module

Usage

Define module:

class SomeModule implements Module {
  @override
  void setup(Binder binder) {
    binder.bindsLazyInstance(() => "123");
    binder.bindsLazyInstance(() => "123", tag: "second");
    binder.bindsFactory(() => ValueNotifier<int>(0));
  }
}

Register module:

add Module to global scope

  IoContainer.take().add(SomeModule());

or add Module to own scope

  IoContainer.take().add(SomeModule(), scope: ScopeType);

when the scope is closed, you can remove scoped dependencies

  IoContainer.take().removeScope(ScopeType);

Get instances:

  // default
  final first = get<String>();
  // tagged
  final second = get<String>(tag: "second");
  // scoped
  final third = get<String>(scope: ScopeType);