How do I handle errors with Angular Auth Guards?

How do I handle errors with Angular Auth Guards?

To handle errors in Angular Auth Guards, you can implement the canActivate method to check for authentication and handle any errors that arise.

Can you show me a code example?

Sure! Here's a simple example:

canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
  return this.authService.isAuthenticated().pipe(
    map(isAuth => {
      if (!isAuth) {
        this.router.navigate(['/login']);
        return false;
      }
      return true;
    }),
    catchError(error => {
      console.error('Error checking authentication', error);
      this.router.navigate(['/error']);
      return of(false);
    })
  );
}

What if I want to log the error to an external service?

You can modify the catchError block to log the error to an external service like Sentry or LogRocket before navigating away.