基于axios封装fetch方法及调用实例

基础axios用法请看axios官网//依赖于axios对私有ajax进行修改importQsfrom'qs'importaxiosfrom'axios'importr

基础axios用法请看axios官网

//依赖于axios对私有ajax进行修改
import Qs from 'qs'
import axios from 'axios'
import router from 'router/index'
import {errorPrompt, loading, closeLoading} from 'util/util'
export const status = {
 SUCCESS: '100',
 NET_ERR: '101', // 网络连接异常，请稍候再试
 BIZ_ERR: '103', // 业务请求异常
 NO_AUTH: '104'
}
export function fetch(options) {
 return new Promise((resolve, reject) => {
 let instance = axios.create({
 baseURL: process.env.BASE_API,
 timeout: 2000,
 headers: {
 // "tracecode": window.encodeURIComponent(JSON.stringify({"ua":"","cv":"20161230","token":"3dwo0onUUsPKVJcP8tk","os":"windows10","app":"kind","ws":"1*1","pkey":"f8caf7d7-a5d4-4710-b06f-28a922b6a467"}))
 "tracecode": commonBizHeader(isManager(options)),
 'Content-Type': 'application/x-www-form-urlencoded'
 },
 transformRequest: [function (data) {
 // Do whatever you want to transform the data
 let ret = ''
 for (let it in data) {
 ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
 }
 return ret
 }]
 });
 instance.interceptors.request.use(function (response) {
 // 请求拦截
 loading();
 return response;
 }, function (error) {
 console.log('error 请求拦截 : ', error)
 return Promise.reject(error);
 });
 instance(options)
 .then(response => {
 const res = response.data;
 if (res.errorCode != status.SUCCESS) {
 switch (res.errorCode) {
 case status.NET_ERR: {
 errorPrompt(res.errorMsg)
 reject(res)
 break;
 }
 case status.BIZ_ERR: {
 errorPrompt(res.errorMsg)
 reject(res)
 break;
 }
 case status.NO_AUTH: {
 errorPrompt(res.errorMsg)
 let session = require("storejs")
 if (isManager(options)) { // 管理端
 session.remove("managerUserToken")
 router.push({path: '/manager/login'})
 } else {
 session.remove("clientUserToken")
 router.push({path: '/client/login'})
 }
 reject(res)
 break
 }
 }
 }
 closeLoading();
 resolve(res);
 }).catch(error => {
 closeLoading();
 errorPrompt('网络连接错误，请检查您的网络')
 console.log('error', error); // for debug
 reject(error);
 });
 });
}
function commonBizHeader (isManager) {
 let session = require("storejs");
 let params = {}
 params['ua'] = window.navigator.userAgent.toLowerCase()
 params['cv'] = '123456'
 params['ws'] = window.screen.height + '*' + window.screen.width
 params['token'] = "123456"
 params['os'] = window.navigator.appCodeName
 if (isManager) {
 params['token'] = session.get('managerUserToken') // 管理 - 用户令牌
 } else {
 params['token'] = session.get('clientUserToken') // 用户 - 用户令牌
 }
 params['app'] = 'kind'
 let UUID = session.get('pkey')
 if (!UUID) {
 UUID = getUUID()
 window.localStorage.setItem('pkey', UUID)
 }
 return encodeURIComponent(JSON.stringify(params))
}
function isManager(options) {
 return options && options.url && options.url.indexOf("/api/worker") != -1
}
/**
 * 获取UUID
 * @returns {string}
 */
export function getUUID() {
 let len = 32 // 32长度
 let radix = 16 // 16进制
 let chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')
 let uuid = []
 let i
 radix = radix || chars.length
 if (len) {
 for (i = 0; i < len; i++) {
 uuid[i] = chars[0 | Math.random() * radix]
 }
 } else {
 var r
 uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'
 uuid[14] = '4'
 for (i = 0; i < 36; i++) {
 if (!uuid[i]) {
 r = 0 | Math.random() * 16
 uuid[i] = chars[(i === 19) ? (r & 0x3) | 0x8 : r]
 }
 }
 }
 return uuid.join('').toLowerCase()
}

这是在vue的项目中：在api中调用方法如下(react刚开始学，还在做简单demo)

import {fetch} from 'api/fetch'
export const callAuthCode = (userPhone) => {
 return fetch({
 url: '/api/auth/code',
 method: 'post',
 data: ({
 userPhone: userPhone,
 }),
 })
}

因为我们这边的后台要求严格区分get/post请求，所以封装的方法调用中必须带有method,如后台已经处理好，全部可进行post请求，则可以参照axios官网里面将方法全部改为.post

关于fetch方法的说明：主要进行封装了请求拦截，响应拦截，默认请求体由json格式转换form格式，当然，这些都是在axios官网里可以找到的，不过是集合下了而已

关于请求头部分请不要直接套用，这是我们这边后台要求特殊配置的，后台接口三端共用，必须区分是哪里在调用

以上这篇基于axios封装fetch方法及调用实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。