How do I implement route guarding in Vue 3 for authentication?

How do I implement route guarding in Vue 3 for authentication?

To implement route guarding in Vue 3, you can use the beforeEach navigation guard in your router configuration.

Can you show me a code example?

Sure! Here's a basic example:

const router = createRouter({
  history: createWebHistory(),
  routes: [
    { path: '/protected', component: ProtectedComponent, meta: { requiresAuth: true } },
    // other routes
  ]
});

router.beforeEach((to, from, next) => {
  if (to.meta.requiresAuth && !isUserAuthenticated()) {
    next({ path: '/login' });
  } else {
    next();
  }
});

What is the isUserAuthenticated function supposed to do?

The isUserAuthenticated function should check if the user is logged in, typically by checking a token or user state.