angular-di

Configure Angular dependency injection with inject(), tokens, and providers.

1.1k|93|Updated Mar 5, 2025
One-click install
npx skills add https://github.com/zard-ui/zardui --skill angular-di-zard-ui
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: angular-di
Source: https://github.com/zard-ui/zardui/tree/main/.agents/skills/angular-di
Command: npx skills add https://github.com/zard-ui/zardui --skill angular-di-zard-ui

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Dependency injection in Angular v20+ decouples components from concrete implementations by enabling injection via inject(), tokens, and providers to manage dependencies across the app.

Core Features & Use Cases

  • Hierarchical injection across root, component, and route scopes to control service lifetimes and accessibility.
  • Injection tokens and multi-provider patterns for configurable, extensible APIs.
  • Testing, runtime configuration, and pattern utilities to compose dependencies in large-scale Angular apps.

Quick Start

Define an InjectionToken, provide it in a module or route, and inject dependencies where needed to bootstrap DI in your app.

Frequently Asked Questions about angular-di

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

FAQPage Schema
How does hierarchical dependency injection work in Angular?▼

Angular hierarchical injection manages service lifetimes across root, component, and route scopes to control singleton or per-instance accessibility and dynamic provider configurations.

How do I use InjectionToken to configure providers in Angular?▼

Define an InjectionToken, provide it in a module or route, and inject dependencies where needed to bootstrap decoupled, token-based configuration and multi-provider patterns in your app.

Can I use the inject() function for runtime configuration in Angular?▼

Yes, the inject() function enables runtime context utilities and lifecycle-aware configurations, allowing components to dynamically retrieve dependencies without constructor-based parameter injection.

What is the best way to test dependency injection in Angular components?▼

Testing with Angular DI involves configuring providers across root, component, or route scopes to supply mocks or stubs, ensuring components remain decoupled from concrete implementations during test execution.

When do I need multi-provider patterns in Angular dependency injection?▼

Multi-provider patterns are needed when creating extensible APIs, allowing multiple values to be associated with a single InjectionToken for dynamic plugin or handler registration within the DI system.