How do I implement routing guards and redirects in Vue.js?

How do I implement routing guards and redirects in Vue.js?

In Vue.js, routing guards are functions that control access to routes. You can use them to redirect users based on certain conditions.

Can you show me an example of a beforeEnter guard?

Sure! Here's a simple example:

const router = new VueRouter({
  routes: [
    {
      path: '/protected',
      component: ProtectedComponent,
      beforeEnter: (to, from, next) => {
        if (isAuthenticated()) {
          next(); // allow access
        } else {
          next('/login'); // redirect to login
        }
      }
    }
  ]
});

What if I want to use global guards instead?

You can set up global guards using router.beforeEach. Here's an example:

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

Can I use async functions in my guards?

Yes, you can use async functions in your guards. Just make sure to await any asynchronous operations before calling next().