Using axios instance with vuex - vue.js

Question

I am building a Vue frontend with Rails backend.
On frontend I am using Axios and I have set these interceptors for authentication:
import axios from 'axios'
const API_URL = 'http://localhost:3000'
const securedAxiosInstance = axios.create({
baseURL: API_URL,
withCredentials: true,
headers: {
'Content-Type': 'application/json'
}
})
const plainAxiosInstance = axios.create({
baseURL: API_URL,
withCredentials: true,
headers: {
'Content-Type': 'application/json'
}
})
securedAxiosInstance.interceptors.request.use(config => {
const method = config.method.toUpperCase()
if (method !== 'OPTIONS' && method !== 'GET') {
config.headers = {
...config.headers,
'X-CSRF-TOKEN': localStorage.csrf
}
}
return config
})
securedAxiosInstance.interceptors.response.use(null, error => {
if (error.response && error.response.config && error.response.status === 401) {
// If 401 by expired access cookie, we do a refresh request
return plainAxiosInstance.post('/refresh', {}, { headers: { 'X-CSRF-TOKEN': localStorage.csrf } })
.then(response => {
localStorage.csrf = response.data.csrf
localStorage.signedIn = true
// After another successfull refresh - repeat original request
let retryConfig = error.response.config
retryConfig.headers['X-CSRF-TOKEN'] = localStorage.csrf
return plainAxiosInstance.request(retryConfig)
}).catch(error => {
delete localStorage.csrf
delete localStorage.signedIn
// redirect to signin if refresh fails
location.replace('/')
return Promise.reject(error)
})
} else {
return Promise.reject(error)
}
})
export { securedAxiosInstance, plainAxiosInstance }
On main.js I am making them available this way:
import VueAxios from 'vue-axios'
import { securedAxiosInstance, plainAxiosInstance } from './axios'
Vue.use(VueAxios, {
secured: securedAxiosInstance,
plain: plainAxiosInstance
})
new Vue({
el: '#app',
router,
store,
securedAxiosInstance,
plainAxiosInstance,
render: h => h(App)
})
And in components I can successfully use them like:
this.$http.secured.get('/items')
The problem is that I am unable to use them in store where I get:
Cannot read property 'secured' of undefined"
I tried in store among others:
import { securedAxiosInstance, plainAxiosInstance } from '../axios'
const store = new Vuex.Store({
secured: securedAxiosInstance,
plain: plainAxiosInstance,
.....
What is the correct way to do it?

Answer 1

You can use this._vm inside the store which refers to the Vue instance of the current application.
So in your case:
this._vm.$http.secured.get('/items')
As alternative you can pass the Vue instance as payload to your mutation/action, like:
this.$store.commit('myMutation',this)