lilishop-uniapp/utils/request.js

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import Request from "@/lib/request/index.js";
import { refreshTokenFn } from "@/api/login.js";
import storage from "@/utils/storage.js";
import { md5 } from "@/utils/md5.js";
import Foundation from "@/utils/Foundation.js";
import api from "@/config/api.js";
import uuid from "@/utils/uuid.modified.js";
/**
* 无痛刷新token思路如果不使用无痛刷新token,忽略此处注释
* 看了很多有个问题一直得不到解决----多个接口请求token失效如何让获取token只获取一遍
* 于是想到了闭包防抖......
* 本方案并不是最佳方案只是给你们提供一种思路如果你有完美解决方案可以分享一下
*/
const expireToken = []; // 储存过期的token
// 防抖闭包来一波
function getTokenDebounce() {
let lock = false;
let success = false;
return async function () {
if (!lock) {
lock = true;
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await refreshTokenFn(storage.getRefreshToken())
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.then((res) => {
if (res.data.success) {
let { accessToken, refreshToken } = res.data.result;
storage.setAccessToken(accessToken);
storage.setRefreshToken(refreshToken);
success = true;
lock = false;
} else {
cleanStorage();
success = false;
lock = false;
}
})
.catch((error) => {
cleanStorage();
success = false;
lock = false;
});
}
return new Promise((resolve) => {
// XXX 我只能想到通过轮询来看获取新的token是否结束有好的方案可以说。一直看lock,直到请求失败或者成功
const timer = setInterval(() => {
if (!lock) {
clearInterval(timer);
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if (success) {
resolve("success");
} else {
cleanStorage();
resolve("fail");
}
}
}, 100); // 轮询时间可以自己看改成多少合适
});
};
}
function cleanStorage() {
uni.showToast({
title: "你的登录状态已过期,请重新登录",
icon: "none",
duration: 1500,
});
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if (uni.showLoading()) {
uni.hideLoading();
}
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storage.setHasLogin(false);
storage.setAccessToken("");
storage.setRefreshToken("");
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console.log("清空token");
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storage.setUuid("");
storage.setUserInfo({});
uni.navigateTo({
url: "/pages/passport/login",
});
}
let http = new Request();
const refreshToken = getTokenDebounce();
http.setConfig((config) => {
// 没有uuid创建
if (!storage.getUuid()) {
storage.setUuid(uuid.v1());
}
/* 设置全局配置 */
config.baseURL = api.buyer;
config.header = {
...config.header,
};
config.validateStatus = (statusCode) => {
// 不论什么状态,统一在正确中处理
return true;
};
return config;
});
http.interceptors.request.use(
(config) => {
/* 请求之前拦截器。可以使用async await 做异步操作 */
let accessToken = storage.getAccessToken();
if (accessToken) {
const nonce = Foundation.randomString(6);
const timestamp = parseInt(new Date().getTime() / 1000);
const sign = md5(nonce + timestamp + accessToken);
const _params = {
nonce,
timestamp,
sign,
};
let params = config.params || {};
params = { ...params, ..._params };
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config.params = params;
config.header.accessToken = accessToken;
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/**
* jwt 因为安卓以及ios没有window的属性
* window.atob这个函数 base64编码的使用方法就是btoa而用于解码的使用方法是atob
* 所以使用手写 base-64 编码的字符串数据
*/
const atob = (str) => Buffer.from(str, "base64").toString("binary");
// 判断如果过期时间小于我的当前时间在请求上重新刷新token
if (accessToken.split(".").length <= 1) {
refresh();
} else {
if (
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JSON.parse(
atob(
accessToken.split(".")[1].replace(/-/g, "+").replace(/_/g, "/")
)
).exp < Math.round(new Date() / 1000)
) {
refresh();
}
}
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}
config.header = {
...config.header,
uuid: storage.getUuid() || uuid.v1(),
};
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console.log(config.header);
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return config;
},
(config) => {
return Promise.reject(config);
}
);
async function refresh() {
// 本地储存的是过期token了重新获取
const getTokenResult = await refreshToken();
if (getTokenResult === "success") {
// 获取新的token成功 刷新当前页面
let routes = getCurrentPages(); // 获取当前打开过的页面路由数组
let curRoute = routes[routes.length - 1].route; //获取当前页面路由
let curParam = routes[routes.length - 1].options; //获取路由参数
// 拼接参数
let param = "";
for (let key in curParam) {
param += "&" + key + "=" + curParam[key];
}
// 判断当前路径
if (curRoute.indexOf("pages/tabbar") == 1) {
uni.switchTab({
url: "/" + curRoute + param.replace("&", "?"),
});
}
uni.redirectTo({
url: "/" + curRoute + param.replace("&", "?"),
});
}
}
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// 必须使用异步函数,注意
http.interceptors.response.use(
async (response) => {
/* 请求之后拦截器。可以使用async await 做异步操作 */
// token存在并且token过期
let token = storage.getAccessToken();
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if (
(token && response.statusCode === 403) ||
response.data.status === 403
) {
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// jwt token 过期了
expireToken.push(token); // 把过期token 储存
const currentToken = storage.getAccessToken();
if (expireToken.includes(currentToken)) {
refresh();
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}
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// 如果当前返回没登录
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} else if (
(!token && response.statusCode === 403) ||
response.data.code === 403
) {
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cleanStorage();
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// 如果当前状态码为正常但是success为不正常时
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} else if (
(response.statusCode == 200 && !response.data.success) ||
response.statusCode == 400
) {
if (response.data.message) {
uni.showToast({
title: response.data.message,
icon: "none",
duration: 1500,
});
}
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}
return response;
},
(error) => {
return error;
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}
);
export { http };
export const Method = {
GET: "GET",
POST: "POST",
PUT: "PUT",
DELETE: "DELETE",
};