HTTP Client in Angular

// Register HttpClient at bootstrap: bootstrapApplication(App, { providers: [provideHttpClient()] })
import { provideHttpClient } from '@angular/common/http';

// Service with HTTP
@Injectable()
export class DataService {
  constructor(private http: HttpClient) {}

  getData(): Observable<Data[]> {
    return this.http.get<Data[]>('/api/data');
  }

  postData(data: Data): Observable<Data> {
    return this.http.post<Data>('/api/data', data);
  }
}