How do I implement authentication with Vue 3 router guards?

How do I implement authentication with Vue 3 router guards?

To implement authentication with Vue 3 router guards, you can use the beforeEach navigation guard to check user authentication before allowing access to certain routes.

Can you show me a code example?

Sure! Here's a basic example:

const router = createRouter({
  history: createWebHistory(),
  routes: [
    { path: '/login', component: Login },
    { path: '/dashboard', component: Dashboard, meta: { requiresAuth: true } }
  ]
});

router.beforeEach((to, from, next) => {
  const isAuthenticated = // your logic to check if user is authenticated;
  if (to.meta.requiresAuth && !isAuthenticated) {
    next('/login');
  } else {
    next();
  }
});

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

What if I want to protect multiple routes?

You can add the requiresAuth meta field to any route you want to protect. Just ensure your beforeEach guard checks this meta field for each route.

Is there a way to handle user roles with router guards?

Yes, you can extend your authentication logic to include user roles. For example, you can check the user's role in the beforeEach guard and allow or deny access based on that.