Authentication Guards
Auth Guard is a type of Route Guard in Angular that controls navigation to a route based on whether the user is authenticated or not. It intercepts navigation requests and either allows or denies access to certain routes based on predefined conditions. Auth Guards are commonly used where certain routes should only be accessible to authenticated users.
Authentication guards in Angular can be implemented using the CanActivate Interface.
CanActivate Interface
It helps in determining whether a route can be activated or not. Basically it works as gate keeper for the routes.
- Implement the CanActivate interface in a auth-guard service
- Inside method definition return true or false on the basis of current authentication status
- Use CanActivate property in specific routes in app.routes.ts file
Syntax:
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): boolean {
return this.checkAuthenticationStatus();
}
Angular Authentication Using Route Guards
In Angular, implementing authentication is important for securing routes and controlling access to different parts of the application based on user authentication status. Angular provides a powerful feature called Route Guards, and among them, the Auth Guard is used to control navigation based on the user’s authentication state. In this article, we’ll explore how to implement authentication using Auth Guards in Angular applications.
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