How can I handle authentication errors in Vue.js?

How can I handle authentication errors in Vue.js?

You can handle authentication errors in Vue.js 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');
  }
  return Promise.reject(error);
});

What if I want to display a user-friendly message?

You can use a notification library to show user-friendly messages. For example, use Vue Toastification to display alerts.

How do I integrate Vue Toastification with Axios?

You can integrate it by calling the toast method in the interceptor. For example:

import { toast } from 'vue-toastification';

axios.interceptors.response.use(response => response, error => {
  if (error.response.status === 401) {
    toast.error('Session expired. Please log in again.');
  }
  return Promise.reject(error);
});