dart-dependency-injection

Implement dependency injection in Dart and Flutter using get_it.

5|Updated Oct 14, 2025

Search Tags:#testing #architecture #dependency injection #flutter #dart #get_it

Ready to run

npx skills add https://github.com/reloveution/dart-flutter-rules --skill dart-dependency-injection

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: dart-dependency-injection
Source: https://github.com/reloveution/dart-flutter-rules/tree/main/skills/dart-dependency-injection
Command: npx skills add https://github.com/reloveution/dart-flutter-rules --skill dart-dependency-injection

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the complexity of managing dependencies in Dart and Flutter applications, ensuring clean architecture, testability, and maintainability.

Core Features & Use Cases

Structured Dependency Registration: Guides the correct order and type (factory, singleton) of dependency registration using get_it.
Constructor Injection Enforcement: Promotes robust design by requiring dependencies to be passed through constructors.
Testing Strategies: Simplifies unit testing by enabling easy mocking of dependencies through constructor injection.
Lifecycle Management: Provides guidance on managing the lifecycle and scoping of registered dependencies.
Use Case: When setting up a new Flutter app, use this Skill to correctly register your API clients, repositories, and use cases with get_it, ensuring they are available and testable throughout the application.

Quick Start

Configure get_it to register my ApiService as a singleton and my UserRepository as a factory.

Frequently Asked Questions about dart-dependency-injection

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up dependency injection in Flutter using get_it?▼

To set up dependency injection in Flutter using get_it, you configure a composition root to register dependencies like API clients and repositories as singletons or factories. This ensures they are available and testable throughout the application.

What is the best way to resolve circular dependencies in Dart dependency injection?▼

The best way to resolve circular dependencies in Dart dependency injection is to restructure your constructor injection patterns. This Skill provides specific guidance on resolving circular dependency issues to maintain a scalable and clean architecture.

How does constructor injection improve Dart application testing?▼

Constructor injection improves Dart application testing by requiring dependencies to be passed through class constructors. This simplifies unit testing by enabling easy mocking of dependencies without relying on global service locators.

When should I use a singleton versus a factory registration in get_it?▼

You should use singleton registration for stateless shared services and factory registration for dependencies requiring fresh instances. This Skill guides the correct order and type of registration for effective lifecycle management in Dart.

Can I manage dependency lifecycles and scopes with get_it in Flutter?▼

Yes, you can manage dependency lifecycles and scopes with get_it in Flutter. This Skill provides guidance on lifecycle management, ensuring registered dependencies are properly scoped and maintained for robust application design.

Why does my get_it dependency injection fail to find registered services?▼

Your get_it dependency injection fails to find registered services when the registration order is incorrect or composition root setup is incomplete. This Skill enforces best practices for structured dependency registration to prevent such errors.