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基于axios封裝fetch方法及調(diào)用實(shí)例

更新時(shí)間：2018年02月05日 10:23:55 作者：風(fēng)翻火焰

下面小編就為大家分享一篇基于axios封裝fetch方法及調(diào)用實(shí)例，具有很好的參考價(jià)值，希望對大家有所幫助。一起跟隨小編過來看看吧

基礎(chǔ)axios用法請看axios官網(wǎng)

//依賴于axios對私有ajax進(jìn)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', // 網(wǎng)絡(luò)連接異常，請稍候再試
 BIZ_ERR: '103', // 業(yè)務(wù)請求異常
 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) {
  // 請求攔截
  loading();
  return response;
 }, function (error) {
  console.log('error 請求攔截 : ', 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('網(wǎng)絡(luò)連接錯(cuò)誤，請檢查您的網(wǎng)絡(luò)')
   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 - 用戶令牌
 } else {
 params['token'] = session.get('clientUserToken') // 用戶 - 用戶令牌
 }
 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
}
/**
 * 獲取UUID
 * @returns {string}
 */
export function getUUID() {
 let len = 32 // 32長度
 let radix = 16 // 16進(jìn)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()
}

這是在vue的項(xiàng)目中：在api中調(diào)用方法如下(react剛開始學(xué)，還在做簡單demo)

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

因?yàn)槲覀冞@邊的后臺(tái)要求嚴(yán)格區(qū)分get/post請求，所以封裝的方法調(diào)用中必須帶有method,如后臺(tái)已經(jīng)處理好，全部可進(jìn)行post請求，則可以參照axios官網(wǎng)里面將方法全部改為.post

關(guān)于fetch方法的說明：主要進(jìn)行封裝了請求攔截，響應(yīng)攔截，默認(rèn)請求體由json格式轉(zhuǎn)換form格式，當(dāng)然，這些都是在axios官網(wǎng)里可以找到的，不過是集合下了而已

關(guān)于請求頭部分請不要直接套用，這是我們這邊后臺(tái)要求特殊配置的，后臺(tái)接口三端共用，必須區(qū)分是哪里在調(diào)用

以上這篇基于axios封裝fetch方法及調(diào)用實(shí)例就是小編分享給大家的全部內(nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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