How do I handle authentication errors in Vue.js?

How do I handle authentication errors in Vue.js?

In Vue.js, you can handle authentication errors by using interceptors in Axios to catch errors globally.

Can you show me an example of using Axios interceptors?

Sure! You can set up an Axios interceptor like this:

axios.interceptors.response.use(
  response => response,
  error => {
    if (error.response.status === 401) {
      // Handle unauthorized access
      console.error('Unauthorized access - redirecting to login');
      router.push('/login');
    }
    return Promise.reject(error);
  }
);

What if I want to display a custom error message to the user?

You can modify the interceptor to show a notification or alert. For example:

if (error.response.status === 401) {
  alert('Session expired. Please log in again.');
}