Angular Services

Name: Angular Services
Author: oguzhan18

oguzhan18/angular-ecosystem-skills

190 installs
6 repo stars
Updated April 4, 2026
oguzhan18/angular-ecosystem-skills

Structure injectable Angular services for shared business logic, API access, state coordination, and cross-component communication with proper DI scopes.

About

Covers Angular service design end to end: when to extract logic from components, how to register providers at root, route, or component level, compose services for API and state duties, and keep units testable while preserving clear dependency boundaries across the app.

Injectable service patterns and provider scopes
Separation of concerns from presentational components
HTTP and domain logic encapsulation
Singleton vs per-route provider strategies
Testing services with TestBed and mocks

Angular Services by the numbers

190 all-time installs (skills.sh)
+1 installs in the week ending Aug 4, 2026 (Skillselion tracking)
Ranked #866 of 2,245 Frontend Development skills by installs in the Skillselion catalog
Data as of Aug 4, 2026 (Skillselion catalog sync)

npx skills add https://github.com/oguzhan18/angular-ecosystem-skills --skill angular-services

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Installs	190
repo stars	★ 6
Last updated	April 4, 2026
Repository	oguzhan18/angular-ecosystem-skills ↗

What it does

Structure injectable Angular services for shared business logic, API access, state coordination, and cross-component communication with proper DI scopes.

Files

SKILL.mdMarkdownGitHub ↗

Angular Services

Version: Angular 21 (2025) Tags: Services, @Injectable, DI

References: Services Guide • @Injectable API

Best Practices

Create service with providedIn

@Injectable({ providedIn: 'root' })
export class DataService {
  getData() {
    return this.http.get('/api/data');
  }
}

Use inject() function

@Injectable({ providedIn: 'root' })
export class UserService {
  private http = inject(HttpClient);
  
  getUsers() {
    return this.http.get<User[]>('/api/users');
  }
}

Use factory providers

@Injectable({
  providedIn: 'root',
  useFactory: () => new LoggerService(environment.production)
})
export class LoggerService {
  constructor(private isProduction: boolean) {}
}

Use providedIn: 'any' for lazy services

@Injectable({ providedIn: 'any' })
export class LazyService {}

Use service in component

@Component({})
export class MyComponent {
  private dataService = inject(DataService);
  
  data$ = this.dataService.getData();
}

Use multiple services

@Component({})
export class MyComponent {
  private auth = inject(AuthService);
  private http = inject(HttpClient);
  private router = inject(Router);
}

Use service for shared state

@Injectable({ providedIn: 'root' })
export class CartService {
  private items = signal<Item[]>([]);
  
  cartItems = this.items.asReadonly();
  
  addItem(item: Item) {
    this.items.update(items => [...items, item]);
  }
}