{
  path: 'project/:id',
  component: ProjectComponent,
  resolve: { data: AppResolver },
  data: { resolvedata: 'myValue' }
}

@Injectable()
export class AppResolver implements Resolve<MyComplexObject []> {
  constructor(private myService: MyService, private router: Router) {}
  resolve(route: ActivatedRouteSnapshot): Observable<MyComplexObject[]>|boolean {
    let myParam = route.data['resolvedata'];
    console.log(myParam);
  }
}

class FooBarResolver implements Resolve<{ foo: any, bar: any }> {
  constructor(
    protected fooResolver: FooResolver,
    protected barResolver: BarResolver
  ) {}

  async resolve(route): Promise<{ foo: any, bar: any }> {
    const foo = await this.fooResolver.resolve(route);
    const bar = await this.barResolver.resolve(route);

    return { foo, bar };
  }
}

<ng-container *ngIf="
  {
    obs1: obs1$ | async,
    obs2: obs2$ | async,
    obs3: obs3$ | async
  } as observables">
    <!--    already expanded observable!-->
    
</ng-container>