text: import axios from 'axios'
  import { MessageBox, Message } from 'element-ui'
  import store from '@/store'
  import { getToken, getLang } from '@/utils/auth'
  
  export const baseURL = process.env.VUE_APP_BASE_API
  export const fileServerURL = process.env.VUE_APP_FILE_SERVER
  
  // axios.defaults.withCredentials = true
  // create an axios instance
  const service = axios.create({
    baseURL: baseURL, // url = base url + request url
    withCredentials: true, // send cookies when cross-domain requests
    timeout: 500000 // request timeout
  })
  
  // request interceptor
  service.interceptors.request.use(
    config => {
      // do something before request is sent
  
      if (store.getters.token) {
        // let each request carry token
        // ['X-Token'] is a custom headers key
        // please modify it according to the actual situation
        config.headers['Authorization'] = 'Bearer ' + getToken()
        config.headers['Lang'] = getLang()
      }
  
      return config
    },
    error => {
      // do something with request error
      console.log(error) // for debug
      return Promise.reject(error)
    }
  )
  
  // response interceptor
  service.interceptors.response.use(
    /**
     * If you want to get http information such as headers or status
     * Please return  response => response
     */
  
    /**
     * Determine the request status by custom code
     * Here is just an example
     * You can also judge the status by HTTP Status Code
     */
    response => {
      const res = response.data
  
      // if the custom code is not 20000, it is judged as an error.
      if (res.code !== 20000) {
        Message({
          message: res.message || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
  
        // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
        if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
          // to re-login
          MessageBox.confirm(
            '您的会话已超时并登出, 您可以选择取消并停留在此页面或重新登录.',
            '会话超时',
            {
              confirmButtonText: '登录',
              cancelButtonText: '取消',
              type: 'warning'
            }
          ).then(() => {
            store.dispatch('user/resetToken').then(() => {
              location.reload()
            })
          })
        }
        return Promise.reject(new Error(res.message || 'Error'))
      } else {
        return res
      }
    },
    error => {
      const res = error.response
      // const status = res.status // http code
      const resData = res.data // axios 包装的response body
  
      // const code = resData.code // 自定义的code
      const message = resData.message // 自定义的错误信息
  
      Message({
        message: message || error.message,
        type: 'error',
        duration: 5 * 1000
      })
      return Promise.reject(error)
    }
  )
  
  export default service
  