What are Vue 3 router guards and how do I use them?

What are Vue 3 router guards and how do I use them?

Vue 3 router guards are functions that allow you to control access to routes in your application. They can be used to check authentication, permissions, or perform other checks before navigating to a route.

Can you give me an example of a beforeEach guard?

Sure! Here's a simple example:

router.beforeEach((to, from, next) => {
  const isAuthenticated = false; // Replace with your auth logic
  if (to.meta.requiresAuth && !isAuthenticated) {
    next({ name: 'Login' }); // Redirect to login if not authenticated
  } else {
    next(); // Proceed to the route
  }
});

What if I want to use multiple guards?

You can define multiple guards for a single route. They will run in the order they are defined. Just ensure each guard calls next() to proceed or redirect as needed.

Are there different types of guards I can use?

Yes, there are several types of guards: beforeEach, beforeEnter, beforeRouteEnter, beforeRouteUpdate, and beforeRouteLeave. Each serves a different purpose depending on when you want to check conditions.