pref: process multiple asynchronous requests using await/async

pages/index/index.js

@@ -208,12 +208,13 @@ Page({
       })
     })
   },
-  initIndexData (pullDownRefresh = false) {
+  async initIndexData (pullDownRefresh = false) {
     var that = this
     wx.showLoading({
       title: '加载中...',
       mask: true
     })
+    // 获取首页档案信息 剩余次数
     homePage({}).then(hoemRes => {
       wx.hideLoading()
       if (pullDownRefresh) {
@@ -237,41 +238,59 @@ Page({
         showCancel: false
       })
     })
+    await that.awaitAppointmentList()
+    await that.awaitAppGetConfigImg()
+  },
+  // 获取待预约次数
+  awaitAppointmentList () {
+    const that = this
     wx.showNavigationBarLoading()
-    appointmentList({
-      status: 1,
-      currentPage: 1
-    }).then(res => {
-      wx.hideNavigationBarLoading()
-      if (res.data.vos.length !== 0) {
-        const response = res.data.vos || []
-        response.map(item => {
-          item.timeStr = item.appointmentTime.split(' ')[0]
-        })
-        that.setData({
-          showTopBar: true,
-          topBarObj: response[0]
-        })
-        app.globalData.hasAppointment = true
-      } else {
+    return new Promise((reslove,reject) => {
+      appointmentList({
+        status: 1,
+        currentPage: 1
+      }).then(res => {
+        reslove(res)
+        wx.hideNavigationBarLoading()
+        if (res.data.vos.length !== 0) {
+          const response = res.data.vos || []
+          response.map(item => {
+            item.timeStr = item.appointmentTime.split(' ')[0]
+          })
+          that.setData({
+            showTopBar: true,
+            topBarObj: response[0]
+          })
+          app.globalData.hasAppointment = true
+        } else {
+          that.setData({
+            showTopBar: false,
+            topBarObj: null
+          })
+        }
+      }).catch(e => {
+        reject(e)
+        wx.hideNavigationBarLoading()
+      })
+    })
+  },
+  // 获取图片资源
+  awaitAppGetConfigImg () {
+    const that = this
+    wx.showNavigationBarLoading()
+    return new Promise((reslove,reject) => {
+      appGetConfigImg({
+        'imgType': '5'
+      }).then(configRes => {
+        reslove(configRes)
+        wx.hideNavigationBarLoading()
         that.setData({
-          showTopBar: false,
-          topBarObj: null
+          homepageImg: configRes.data[0].imgUrl
         })
-      }
-    }).catch(e => {
-      wx.hideNavigationBarLoading()
-    })
-    // 获取图片资源
-    appGetConfigImg({
-      'imgType': '5'
-    }).then(configRes => {
-      wx.hideNavigationBarLoading()
-      that.setData({
-        homepageImg: configRes.data[0].imgUrl
+      }).catch(e => {
+        reject(e)
+        wx.hideNavigationBarLoading()
       })
-    }).catch(e => {
-      wx.hideNavigationBarLoading()
     })
   },
   /**