import { Injectable } from '@angular/core'; import { ActivatedRouteSnapshot, Resolve } from '@angular/router'; import { Observable } from 'rxjs/internal/Observable'; import { ClosingStock } from './closing-stock'; import { ClosingStockService } from './closing-stock.service'; @Injectable({ providedIn: 'root', }) export class ClosingStockResolver implements Resolve { constructor(private ser: ClosingStockService) {} resolve(route: ActivatedRouteSnapshot): Observable { const date = route.paramMap.get('date'); const costCentre = route.queryParamMap.get('d') || null; return this.ser.list(date, costCentre); } }