vue axios请求拦截器 请求响应器

import axios from 'axios'
import { Message } from 'element-ui'
// 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: 60000 // request timeout
})
// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if(localStorage.getItem('token')){
      config.headers['token'] = localStorage.getItem('token')
    }
    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
    return res
  },
  error => {
    console.log(error)
    if(error.response.status==401){
      
    return
    }
    Message({
      message: error.response.data.msg || error.message,
      type: 'error',
      duration: 10 * 1000
    })
    return Promise.reject(error)
  }
)
export default service