import { Injectable } from '@angular/core'; import { HttpClient } from '@angular/common/http'; @Injectable({ providedIn: 'root' }) export class ApiService { constructor( public http: HttpClient ) { } addCountry(data) { // return this.http.post('./insert.php', data); return this.http.post('http://localhost/backend/insert.php', data); } getCountries() { return this.http.get('http://localhost/backend/read.php'); } delCountry(countryId) { // return this.http.post('./insert.php', data); return this.http.post('http://localhost/backend/delete.php', countryId); } }