axios的封装与请求

$ npm install axios --save

import axios from 'axios'
import { Toast, Dialog } from 'vant'

// 创建一个axios实例
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API,
  // withCredentials: true,
  timeout: 5000
})

// 请求拦截器
service.interceptors.request.use(
  config => {
    // 这里做些发送请求前的事情
    return config
  },
  error => {
    console.log(error)
    return Promise.reject(error)
  }
)

// 响应拦截器
service.interceptors.response.use(
  response => {
    const res = response.data

    // 与后端约定的错误码
    if (res.code !== 200) {
      Toast.fail(res.message)
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error)
    Toast.fail(error.message)
    return Promise.reject(error)
  }
)

export default service

// .env.development
# base api
VUE_APP_BASE_API = '/dev-api'

// .env.production
# base api
VUE_APP_BASE_API = '/prod-api'

import request from '@/utils/request'

export function getBanner() {
  return request({
    url: '/home/banner',
    method: 'get'
  })
}

import { getBanner } from '@/api/home'

getBanner() {
  getBanner().then(res => {
    this.banner = res.entry
  })
}