How do I use async router guards in Vue 3?

How do I use async router guards in Vue 3?

In Vue 3, async router guards can be used to handle asynchronous operations before navigating to a route. You can define them in your router configuration.

Can you show me an example of an async router guard?

Sure! Here's a simple example:

const router = createRouter({
  history: createWebHistory(),
  routes: [
    {
      path: '/protected',
      component: ProtectedComponent,
      beforeEnter: async (to, from, next) => {
        const isAuthenticated = await checkAuth();
        if (isAuthenticated) {
          next();
        } else {
          next('/login');
        }
      }
    }
  ]
});

What does the checkAuth function do?

The checkAuth function is a placeholder for your authentication logic. It should return a promise that resolves to true if the user is authenticated, or false otherwise.

Can I use multiple guards for a single route?

Yes, you can chain multiple guards by calling next() in each guard. Just ensure that they are executed in the correct order.