IBM Cloud AppID service in Angular

auth.service.ts

import {Injectable} from '@angular/core';
import AppID from 'ibmcloud-appid-js';

@Injectable({
  providedIn: 'root'
})
export class AuthService {
  private appId;
  private accessToken: string;

  constructor() {
    this.appId = new AppID();
    this.initClient().then(() => console.log('initialized AuthService.'));
  }

  private async initClient() {
    // AppIDの資格情報に記載された値をそれぞれ入れる
    await this.appId.init({
      clientId: 'YOUR_CLIENT_ID',
      discoveryEndpoint: 'YOUR_DISCOVERY_ENDPOINT'
    });
  }

  get isAuthenticated(): boolean {
    return !!this.accessToken;
  }

  async signIn() {
    const { accessToken } = await this.appId.signin();
    this.accessToken = accessToken;
  }

  async getUserInfo() {
    return await this.appId.getUserInfo(this.accessToken);
  }

}