Oidc Client Authorization Service - Async HTTP Interceptors | Angular 6.x | rxjs 6.x

oidc-auth.service.ts

import { Injectable } from '@angular/core';
import { UserManager, User } from 'oidc-client';
import { Observable, from } from 'rxjs';

@Injectable({
    providedin: 'root'
})
export class AuthService {

    private userManager: UserManager;

    constructor () {
        this.userManager = new UserManager({
            // options
        });
    }

    getUser(): Observable<User> {
        // change the promise retruned from this.userManager.getUser() into an observable and return it
        return from(this.userManager.getUser());
    }
    
    // TODO - perform other UserMananger tasks i.e. singinSilent, signinRedirect, or signoutRedirect.
                                                  
}