Hi,
I have an AuthGard, which redirects to a login screen, if login is
necessary and the user did not yet log in.
@Injectable()
export class AuthGuard implements CanActivate {
authenticationService: AuthenticationService;
constructor(private router: Router, authenticationService:
AuthenticationService) {
this.authenticationService = authenticationService
}
canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
if (! this.authenticationService.isLoginNecessary() || this.
authenticationService.isUserLoggedIn()) {
return true;
}
else {
// not logged in so redirect to login page with the return url
this.router.navigate(['/login'], { queryParams: { returnUrl: state.url }});
console.log("AuthGuard noticed user login is necessary and user is not
logged in, redirect to login page")
return false;
}
}
}
The authenticationService.isLoginNecessary() gets it's information from an
server call generated via swagger service.
As you see in
@Injectable()
export class AuthenticationService {
configservice: ConfigurationService;
configInfo: ConfigInfo;
constructor(configservice:ConfigurationService) {
this.configservice = configservice
}
ngOnInit () {
console.log ("ngOnInit of AutenticationServiec called - yeah")
this.configservice.getConfiguration().subscribe (
(x) => {
this.configInfo = x;
},
(e) => console.log(e),
() => console.log('Get configuration completed (' + this.configInfo + ')')
)
}
isLoginNecessary () : boolean {
return this.configInfo.loginNeeded
}
I have located fetching the info in the ngInit() of authenticationService,
but in isLoginNecessary() the configInfo is not set yet, so getting an
exception.
I think the problem is configservice is generated asynchronous.
Can you please give me advice how I can ensure that this.configInfo is
initialized when isLoginNecessary() is called?
Thanks in advance
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