Angular State Management: Choosing Between Services, Storage Options, and Signals

As Angular developers, we’re often faced with deciding how to efficiently manage and persist data. Should you keep it in memory using an Angular service, store it in SessionStorage or LocalStorage, explore the new Signal feature, or use the powerful IndexedDB?

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Balram Chavan

1. Angular Services: In-Memory State Sharing

Angular services are excellent for sharing in-memory data across components. They’re lightweight, fast, and perfect for transient data.

When to Use Angular Services

Lifespan: Data exists only while the app is running and does not survive page reloads.

• Accessibility: Great for components needing shared state within the app session.
• Examples: Storing form data, managing temporary flags, or caching API responses.

@Injectable({ providedIn: 'root' })
export class UserService {
  private user: any;

  setUser(data: any) {
    this.user = data;
  }

  getUser()…