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angular-di

Implement dependency injection in Angular with inject(), tokens, and provider scopes.

Updated Nov 20, 2025
Search Tags:#typescript#angular#dependency injection#services#di#angular components
One-click install
npx skills add https://github.com/bluehands/Carbon-Aware-Scheduler --skill angular-di-bluehands
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: angular-di
Source: https://github.com/bluehands/Carbon-Aware-Scheduler/tree/main/source/frontend/.agents/skills/angular-di
Command: npx skills add https://github.com/bluehands/Carbon-Aware-Scheduler --skill angular-di-bluehands

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill simplifies and clarifies the implementation of dependency injection (DI) in Angular applications, making services more manageable and testable.

Core Features & Use Cases

  • Modern DI Practices: Demonstrates inject(), injection tokens, and advanced provider configurations in Angular v20+.
  • Scoped Services: Guides on providing services at root, component, or route levels for efficient resource management.
  • Use Case: You are building a complex Angular application and need to ensure that your AuthService is a singleton across the entire app, while a FormStateService should have a unique instance for each form component. This Skill shows you how to configure that.

Quick Start

Use the angular-di skill to inject the HttpClient service into a component.

Frequently Asked Questions about angular-di

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

FAQPage Schema
How do I configure a singleton service versus a scoped service in Angular?▼

Angular dependency injection allows configuring singleton services at the root level using `provideIn: 'root'`, while scoped services are provided at the component or route level to ensure unique instances for each form or component.

What is the modern way to inject HttpClient into an Angular component?▼

The modern approach for dependency injection in Angular uses the `inject()` function instead of constructor injection, allowing you to directly inject services like HttpClient into your components with cleaner syntax.

When should I use injection tokens in Angular dependency injection?▼

Injection tokens are used in Angular dependency injection to provide custom configurations or non-class dependencies, ensuring type-safe injection for interfaces or configuration objects across your application.

Does Angular dependency injection support providing services at the route level?▼

Yes, Angular dependency injection supports providing services at the route level, allowing efficient resource management by scoping service instances specifically to their associated routes.

Why use the inject() function instead of constructor parameters in Angular services?▼

Using the `inject()` function for dependency injection in Angular modernizes service architecture, prevents constructor parameter bloat, and makes services more manageable and testable.

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