import { Component, OnInit } from '@angular/core'; import { Router, ActivatedRoute } from '@angular/router'; import { MyFirstSAngularService } from '../service/my-first-s-angular.service'; @Component({ selector: 'app-my-first-c-angular', templateUrl: './my-first-c-angular.component.html', styleUrls: ['./my-first-c-angular.component.css'] }) export class MyFirstCAngularComponent implements OnInit { welcomeMessage = ''; constructor(private myFirstAnguluarService: MyFirstSAngularService) { } ngOnInit() { this.myFirstAnguluarService.executeMyFirstHttpCall().subscribe((res) => { this.welcomeMessage = res.content; }); } }