src/utils/request.js

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: 5000 // request timeout
})
// request interceptor
service.interceptors.request.use(
	config => {
		// do something before request is sent
 
		if (store && store.getters && 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'] = getToken()
		}
		else if(localStorage.token){
			config.headers['Authorization'] = localStorage.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
		// if the custom code is not 20000, it is judged as an error.
		if (res.code < 0 || res.data.code<0) {
			Message({
				message: res.data.message || 'Error',
				type: 'error',
				duration: 2 * 1000
			});
			 return Promise.reject(new Error(res.data || 'Error'))
		}
		return res
	},
	error => {
		console.log('err' + error) // for debug
		Message({
			message: error.message,
			type: 'error',
			duration: 5 * 1000
		})
		return Promise.reject(error)
	}
)
export default service