src/app/_guards/auth.guard.ts
Auth guard implementation. Dictates access to routes depending on the authentication status.
Methods |
constructor(router: Router)
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Defined in src/app/_guards/auth.guard.ts:21
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Instantiates the auth guard class.
Parameters :
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canActivate | ||||||||||||
canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot)
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Defined in src/app/_guards/auth.guard.ts:38
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Returns whether navigation to a specific route is acceptable. Checks if the user has uploaded a private key.
Parameters :
Returns :
Observable | Promise | boolean | UrlTree
true - If there is an active private key in the user's localStorage. |
import { Injectable } from '@angular/core';
import {
ActivatedRouteSnapshot,
CanActivate,
Router,
RouterStateSnapshot,
UrlTree,
} from '@angular/router';
// Third party imports
import { Observable } from 'rxjs';
/**
* Auth guard implementation.
* Dictates access to routes depending on the authentication status.
*/
@Injectable({
providedIn: 'root',
})
export class AuthGuard implements CanActivate {
/**
* Instantiates the auth guard class.
*
* @param router - A service that provides navigation among views and URL manipulation capabilities.
*/
constructor(private router: Router) {}
/**
* Returns whether navigation to a specific route is acceptable.
* Checks if the user has uploaded a private key.
*
* @param route - Contains the information about a route associated with a component loaded in an outlet at a particular moment in time.
* ActivatedRouteSnapshot can also be used to traverse the router state tree.
* @param state - Represents the state of the router at a moment in time.
* @returns true - If there is an active private key in the user's localStorage.
*/
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
if (localStorage.getItem(btoa('CICADA_PRIVATE_KEY'))) {
return true;
}
this.router.navigate(['/auth']);
return false;
}
}