How do I use async/await with routing guards in Vue 3?

How do I use async/await with routing guards in Vue 3?

In Vue 3, you can use async/await in routing guards to handle asynchronous operations like API calls before navigating.

Can you show me an example of how to implement this?

Sure! In your router configuration, you can define a guard like this:

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

What if the API call fails?

You can handle errors using a try/catch block. Here's an updated example:

beforeEnter: async (to, from, next) => {
  try {
    const isAuthenticated = await checkAuth();
    if (isAuthenticated) {
      next();
    } else {
      next('/login');
    }
  } catch (error) {
    console.error('Authentication check failed:', error);
    next('/error');
  }
}