Provide a way to retrieve the ID Token using a custom (non-default) audience

[schnucks-pveeramach]

Problem

If access token is retrieved using a non default audience, the idTokenClaims$ observable emits an event with a null value because it internally appears to be always looking for id token using the default audience:

// This returns a null value when access token is retrieved as shown on the next line
this.authService.idTokenClaims$.pipe((take(1)))
  .subscribe((idToken) => {
    console.log('id token:', JSON.stringify(idToken));
  });

this.authService.getAccessTokenSilently({
      audience: 'non default audience',
      ignoreCache: true
    });

Ideal solution

The AuthService either exposes a way to retrieve the ID token for a given audience or the observable emits id tokens for any audience with some way to identify what audience it is for.

[schnucks-pveeramach]

Now that 1.6.1 is available, the below snippet worked, because the injection token is exposed:

this.authService.getAccessTokenSilently({
      audience: 'non default audience',
      ignoreCache: true
    }).pipe(take(1))
      .subscribe((token) => {
        this.auth0Client.getIdTokenClaims({
          audience: 'non default audience'
        }).then((idToken) => console.log(idToken));
      });

where auth0Client is injected into the component using:
@Inject(Auth0ClientService) private auth0Client: Auth0Client

Maybe this is not a good approach or the intended use of the injection token but documenting the observation nevertheless.

[frederikprijck]

Thanks for the update. I believe this is not an explicitly supported feature, but a side-effect of exposing the auth0Client, which I believe is a good idea for these kind of situations where you might need behavior of the underlying SDk that doesn't exist in the Angular SDK natively.