What are some usage scenarios for Angular CLI guards?

What are some usage scenarios for Angular CLI guards?

Angular CLI guards are used to control access to routes in an Angular application. Common scenarios include protecting routes from unauthorized access, preventing users from navigating away from unsaved changes, and implementing role-based access control.

Can you give me an example of a route guard implementation?

Sure! A common implementation is the CanActivate guard, which checks if a user is logged in before allowing access to a route. You can create a service that implements CanActivate and use it in your routing module.

What about using guards for data fetching?

Yes, you can use guards like CanLoad to prevent loading a module until certain conditions are met, such as ensuring data is available or the user has the right permissions.

Are there any performance considerations with using guards?

Absolutely! While guards add security, they can also introduce latency if they perform heavy operations. It's best to keep guard logic lightweight and efficient.