constructor() {
this.loginEvent = new EventEmitter();
// If I implement revocation of JWTs from the server side, make sure to
// cache JWTs that are revoked until they expire.
this.loginEvent.subscribe((jwtResult: IJWT) => {
this.jwtResult = jwtResult;
});
this.loggedIn = this.loginEvent
.map((jwtResult: IJWT) => {
return Boolean(jwtResult && jwtResult.aud);
});
// Necessary because you can't negate an Observable<boolean> or assign
// within a map function inside a template
this.loggedOut = this.loggedIn.map(b => !b);
}