Configure baseUrl option for axios only once

frontend/src/api/repository.js

@@ -1,4 +1,3 @@
-import Vue from 'vue'
 import axios from 'axios'
 import Cookies from 'js-cookie'
 
@@ -10,7 +9,6 @@ const _axios = axios.create()
 _axios.interceptors.request.use(
   function (config) {
     // Do something before request is sent
-    config.baseURL = Vue.prototype.$config.API_BASE_URL
     if (store.state.auth.isAuthenticated) {
       config.headers['Accept-Language'] = store.state.auth.authUser.language
     }

frontend/src/main.js

@@ -8,6 +8,7 @@ import router from './router'
 import store from './store'
 import vuetify from './plugins/vuetify'
 import sassStyles from './styles/global.scss' // eslint-disable-line no-unused-vars
+import repository from './api/repository'
 
 Vue.config.productionTip = false
 
@@ -15,7 +16,13 @@ export const bus = new Vue()
 
 fetch(process.env.BASE_URL + 'config.json').then(resp => {
   resp.json().then((config) => {
+    if (!config.API_BASE_URL) {
+      throw Error('API_BASE_URL is not defined in config.json')
+    }
+    repository.defaults.baseURL = config.API_BASE_URL
+
     Vue.prototype.$config = config
+
     new Vue({
       router,
       store,