Tutorial: Integrating Vuex, Vue Router, and Axios in a Vue.js Application

Integrate Vuex, Vue Router, and Axios in a Vue.js application to manage the state, handle routing, and make API calls. Configure the store with actions, mutations, and state to fetch data from a REST API, and use the Vue Router's navigation guards to protect certain routes that require user authentication. Create a tutorial for a Vue.js application that demonstrates the integration of Vuex, Vue Router, and Axios.