How can I implement route guarding in Vue.js using Vue Router?

How can I implement route guarding in Vue.js using Vue Router?

You can implement route guarding in Vue.js by using the beforeEach navigation guard provided by Vue Router. This allows you to check conditions before a route is entered.

Can you show me a code example of how to set this up?

Sure! Here's a basic example:

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

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

This checks if the route requires authentication and redirects to the login page if the user is not authenticated.

What is the isAuthenticated function supposed to do?

The isAuthenticated function should return a boolean indicating whether the user is logged in or not. You can implement it based on your authentication logic, such as checking a token in local storage.

Are there other types of guards I can use?

Yes, besides beforeEach, you can use beforeEnter for specific routes, and also afterEach for actions after navigation.