vue-pure-admin/frontend/angular-ts/src/app/pages/data-resolver.service.ts

import { Injectable } from '@angular/core';
import {
  Router, Resolve, RouterStateSnapshot,
  ActivatedRouteSnapshot,
} from '@angular/router';
import { Observable, Subject } from 'rxjs';
import { map, take } from 'rxjs/operators';


@Injectable({
  providedIn: 'root',
})
export class DataResolverService implements Resolve<any>{

  constructor() {
  }

  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<any> | Promise<any> | any {
    console.log(1);
    return 'aaa';
  }
}