如何从angular调用B2C Graph API？

import { MsalModule, MsalInterceptor } from '@azure/msal-angular';
import { HTTP_INTERCEPTORS } from '@angular/common/http';

@NgModule({
  imports: [
    MsalModule.forRoot({
      auth: {
        clientId: 'your-client-id',
        authority: 'https://your-tenant-name.b2clogin.com/your-tenant-name.onmicrosoft.com/B2C_1A_signup_signin',
        redirectUri: 'http://localhost:4200',
      },
      cache: {
        cacheLocation: 'localStorage',
        storeAuthStateInCookie: true,
      },
    }),
  ],
  providers: [
    {
      provide: HTTP_INTERCEPTORS,
      useClass: MsalInterceptor,
      multi: true,
    },
  ],
})
export class AppModule {}

import { MsalService } from '@azure/msal-angular';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-your-component',
  templateUrl: './your-component.component.html',
  styleUrls: ['./your-component.component.css'],
})
export class YourComponent implements OnInit {
  constructor(private msalService: MsalService, private http: HttpClient) {}

  ngOnInit(): void {}

  callGraphApi(): void {
    const accessToken = this.msalService.getAccount()?.idTokenClaims?.accessToken;

    this.http.get('https://your-tenant-name.b2clogin.com/your-tenant-name.onmicrosoft.com/B2C_1A_signup_signin/v2.0/your-api-endpoint', {
      headers: {
        Authorization: `Bearer ${accessToken}`,
      },
    })
    .subscribe((response) => {
      console.log(response);
    });
  }
}

<button (click)="callGraphApi()">Call Graph API</button>