封装axios

import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 300000 // request timeout
})

// request interceptor 拦截器
service.interceptors.request.use(
  config => {
    // console.log(config.data)
    // 去除字段
    if (config.data) {
      if (config.data.gmtCreated) {
        delete config.data.gmtCreated
      }
      if (config.data.gmtModified) {
        delete config.data.gmtModified
      }
    }
    // 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
　　　 // 配置请求头

      var _getToken = 'Bearer ' + getToken()
      config.headers['Authorization'] = _getToken
      config.headers['deviceId'] = '0000000000'
    }
    return config
  },
  error => {
    // do something with request error
    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.status !== 0 && res.status !== 200) {
      Message({
        message: res.msg || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.status === 21332 /* || res.status === 50012 || res.status === 50014 */) {
        // to re-login
        MessageBox.confirm('您已注销，您可以取消以停留在此页，或重新登录', '确认注销', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: '警告'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.msg || 'Error'))
    } else {
      return res
    }
  },
  error => {
    Message({
      message: error.msg,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service