ngOnInit() {
loadModules([
'esri/arcgis/OAuthInfo',
'esri/IdentityManager'
])
.then(([OAuthInfo, IdentityManager]) => {
const identityManager = new IdentityManager();
const oAuthInfo = identityManager.findOAuthInfo(portalUrl);
console.log('This is the Oauth Info: ' + oAuthInfo.toJson);