how to go back to previous route in next.js
//if user not logged in
if (!auth.user) {
window.localStorage.setItem("path", router.asPath); //save current route
router.replace("/login"); //send user to login page
return <div> redirecting to login... </div>
}
//when user login
if (auth.user) {
const path = localStorage.getItem("path")
router.replace(path || "/"); //navigate to last route
return <div> Loading... </div>
);
}