Hello yahya ,
Using both, you can secure access in your frontend using reducers with react redux, and with jwt token authentification you can secure your backend using permisision in you serializers.
Or,
How we restrict route is, we only give access if the user is logged in. In the router page, we add a condition like:
{isLoggedIn && (
....routes
)}
So this only allows logged in users to the route, if not logged in then it will show 404 route.
Tokens and keys are stored in local storage of browser, we will pass the token with the api header as authorization.
Hope it works!!
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Thanks!!