guosen-ldt-shop/assets/http/service.js

import Request from 'luch-request'
import setting from './setting.js'
import crypto from '@/utils/crypto.js'
import queryParams from '@/utils/queryParams.js'

let baseURL = setting.baseURL
let refreshTokenUrl = baseURL + "blade-auth/oauth/token"

//获取token
const getTokenStorage = () => {
	let token = ''
	try {
		token = uni.getStorageSync('token')
	} catch (e) {}
	return token
}
//缓存token信息
const cacheToken = (data) => {
	let tokenInfo = {
		accessToken: data.access_token,
		//提前500秒过期
		expiresIn: new Date().getTime() + (data.expires_in - 500) * 1000,
		refreshToken: data.refresh_token,
		tenantId: data.tenant_id,
		nickName: data.nick_name
	}
	uni.setStorageSync('token', data.access_token)
	uni.setStorageSync('tokenInfo', tokenInfo)
}

const http = new Request()
http.setConfig((config) => {
	/* 设置全局配置 */
	config.baseURL = baseURL /* 根域名不同 */
	config.header = {
		...config.header,
	}
	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 */
	config.header = {
		...config.header,
		"Content-Type": "application/json;charset=UTF-8",
		"Authorization": "Basic c2FiZXI6c2FiZXJfc2VjcmV0",
		"Blade-Auth": getTokenStorage()
	}
	// 1：开启加密
	// 2：post请求
	// 3：请求体不为空
	// 4: url不在白名单内
	if (setting.enabledCrypto && config.method == 'POST' && config.data && crypto.isNotInWhiteList(config.url)) {
		//报文加密
		let encrypt= crypto.encrypt(JSON.stringify(config.data))
		config.data=encrypt
	}
	
	return config
}, (config) => {
	return Promise.reject(config)
})
// 是否正在刷新的标记
let isRefreshing = false
// 重试队列，每一项将是一个待执行的函数形式
let requests = []
http.interceptors.response.use(async (response) => {
	/* 请求之后拦截器。可以使用async await 做异步操作  */
	//toekn过期处理 
	//200 返回数据成功 0
	if (response.data.code != 200) {
		uni.showToast({
			icon: 'none',
			title: response.data.msg
		})
		return Promise.reject(response)
	}
	return response.data
}, async (err) => { // 请求错误做点什么
	if (err.data.code == 401) {
		let {
			config
		} = err
		if (!isRefreshing) {
			isRefreshing = true

			let tokenInfo = uni.getStorageSync('tokenInfo')
			if (!tokenInfo.tenantId) {
				let phone = uni.getStorageSync("phone")
				uni.showModal({
					title: "提示",
					content: "会话已过期，请重新登录",
					showCancel: false,
					confirmColor: '#EF9944',
					success: (res) => {
						if (res.confirm) {
							uni.clearStorageSync()
							uni.set
							uni.reLaunch({
								url: "/pages/login/account-login?phone=" + phone
							})
						}
					}
				});
				return
			}
			let tokenParams={
				'tenantId': tokenInfo.tenantId,
				'refresh_token': tokenInfo.refreshToken,
				'grant_type': "refresh_token",
				'scope': "all",
			}
			let [, res] = await uni.request({
				url: refreshTokenUrl + queryParams(tokenParams),
				method: 'POST',
				header: {
					'Authorization': "Basic c2FiZXI6c2FiZXJfc2VjcmV0",
					'Tenant-Id': tokenInfo.tenantId
				}
			})
			if (res.data && res.data.error_description == "用户名或密码不正确") {
				uni.clearStorage()
				uni.reLaunch({
					url: "/pages/login/account-login"
				})
				return
			}
			//否则保存新的token
			cacheToken(res.data)

			requests.forEach(cb => cb())
			// 重试完了清空这个队列
			requests = []
			isRefreshing = false
			return http.request(config)
		} else {
			return new Promise((resolve) => {
				// 将resolve放进队列，用一个函数形式来保存，等token刷新后直接执行
				requests.push(() => {
					resolve(http.request(config))
				})
			})
		}
	}
	if (err.data.code == 500) {
		uni.showToast({
			title: err.data.msg,
			icon: "none"
		})
		return Promise.reject(err)
	}
	if (!err.data.success) {
		uni.showToast({
			title: err.data.msg,
			icon: "none"
		})
		return err.data
	} else {
		return err.data
	}
})
export {
	http
}