keycloak-js for angular 8 code example

Example: Angular Application using KeyCloak

private keycloakAuth: any;init(): Promise<any> { return new Promise((resolve, reject) => {    const config = {      'url': 'http://localhost:8888/auth',      'realm': 'example',      'clientId': 'js-console'    };    this.keycloakAuth = new Keycloak(config);    this.keycloakAuth.init({ onLoad: 'login-required' })      .success(() => {        resolve();      })      .error(() => {        reject();      });    });}getToken(): string {  return this.keycloakAuth.token;}