fuse-angular/src/app/main/content/apps/e-commerce/dashboard/dashboard.service.ts

import { Injectable } from '@angular/core';
import { ActivatedRouteSnapshot, Resolve, RouterStateSnapshot } from '@angular/router';
import { Observable } from 'rxjs/Observable';
import { HttpClient } from '@angular/common/http';

@Injectable()
export class EcommerceDashboardService implements Resolve<any>
{
    projects: any[];
    widgets: any[];

    constructor(
        private http: HttpClient
    )
    {
    }

    /**
     * Resolve
     * @param {ActivatedRouteSnapshot} route
     * @param {RouterStateSnapshot} state
     * @returns {Observable<any> | Promise<any> | any}
     */
    resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<any> | Promise<any> | any
    {

        return new Promise((resolve, reject) => {

            Promise.all([
                this.getProjects(),
                this.getWidgets()
            ]).then(
                () => {
                    resolve();
                },
                reject
            );
        });
    }

    getProjects(): Promise<any>
    {
        return new Promise((resolve, reject) => {
            this.http.get('api/project-dashboard-projects')
                .subscribe((response: any) => {
                    this.projects = response;
                    resolve(response);
                }, reject);
        });
    }

    getWidgets(): Promise<any>
    {
        return new Promise((resolve, reject) => {
            this.http.get('api/e-commerce-dashboard')
                .subscribe((response: any) => {
                    this.widgets = response;
                    resolve(response);
                }, reject);
        });
    }
}