102 lines
2.2 KiB
JavaScript
102 lines
2.2 KiB
JavaScript
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// 正在队列上的请求
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const pendings = []
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let refreshing = false
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// 刷新token
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const refresh_token = app => {
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return new Promise((resolve, reject) => {
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do_request(app, {
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url: '/auth/token',
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method: 'get'
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}).then(res => {
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// 设置登录信息
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const userInfo = app.globalData.userInfo
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userInfo.token = res.token
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resolve(true)
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}).catch(err => {
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console.log(err)
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// 清空登录信息
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app.globalData.login = false
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app.globalData.userInfo = {}
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app.globalData.loginTime = null
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refreshing = false
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reject()
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}).then(() => {
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// 停止刷新状态
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refreshing = false;
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// 执行所有的代发请求
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pendings.forEach(element => {
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do_request(app, element)
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})
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})
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})
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}
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// 实际操作函数
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const do_request = (app, options) => {
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return new Promise((resolve, reject) => {
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const { data, method, url } = options
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// 设置请求头
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let header_options = {
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'timestamp': Date.now(),
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'X-Requested-With': 'XMLHttpRequest'
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}
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// 检查登录状态
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if(app.globalData.login) {
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}
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options.url = app.globalData.baseURL + url
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if(data && method === 'post') {
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header_options['Content-Type'] = 'application/x-www-form-urlencoded'
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}
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wx.request({
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header: {
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...header_options
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},
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...options,
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success: function(res) {
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const data = res.data
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if(data.status >= 200 && data.status < 300) {
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resolve(data.data)
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} else {
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reject(data.data)
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}
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},
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fail: function(res) {
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reject(res.data)
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}
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})
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})
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}
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// 对外接口
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const request = options => {
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return new Promise((resolve, reject) => {
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const app = getApp()
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// 获得登录时间
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const loginTime = app.globalData.loginTime
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// 检查是否达到刷新周期
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if(loginTime != null && loginTime + 1000 * 60 < Date.now()) {
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app.globalData.loginTime = null
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refreshing = true
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refresh_token(app)
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}
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if(refreshing) {
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pendings.push(options)
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} else {
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do_request(app, options).then(res => {
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resolve(res)
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}).catch(err => {
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reject(err)
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})
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}
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})
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}
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export default request
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