Analysis of 2 Token Reasons and Sample Code in Web Project Development

import Vue from 'vue'
import axios from 'axios'
import VueAxios from 'vue-axios'
import { getToken, setToken } from './token'
import router from '../router/index.js'
import { Toast } from 'vant'
Vue.use(VueAxios, axios)
const instance = axios.create({
  baseURL: 'base URL',
  timeout: 100000
})
// Add request interceptor instance.interceptors.request.use(
  function (config) {
    // Add token uniformly
    getToken() && (config.headers['Authorization']= `Bearer ${getToken().token}`)
    return config
  },
  function (error) {
    return Promise.reject(error)
  }
)
//Add response interceptor/**
 * 1.if 401 else don't care* 2.if there is a token else jump to the login page* 3.try-catch use refresh_token to get the token, if successful else refresh_token is invalid, jump to the login page* 4.Save the obtained token, update, and continue to perform the user's desired operation*/
instance.interceptors.response.use(
  function (response) {
    return response
  },
  async function (error) {
    if (401 === error.response.status) {
      setTimeout('console.clear()', 2000)
      if (getToken()) {
        try {
          // Logged in, but the short T expired, use the long T to get the short T (refresh user token)
          let res = await axios({
            url: 'base address/v1_0/authorizations',
            method: 'PUT',
            headers:{Authorization : `Bearer ${getToken().refresh_token}`}
          })
          // Update short T
          let token = getToken()
          token.token = res.data.data.token
          setToken(token)
          // Continue user operation return instance(error.config)
        } catch (error) {
          // Long T fails, jump to login page Toast.fail('Please log in first')
          router.push({ path: '/login' })
        }
      } else {
        // Not logged in, jump to the login page Toast.fail('Please log in first')
        router.push({ path: '/login' })
      }
    }
    return Promise.reject(error)
  }
)
export default instance