微信小程序云开发之使用云函数

// 云函数入口文件
const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database()
// 云函数入口函数
exports.main = async (event, context) => {
 var videoId = event.videoId ? event.videoId : null;
 try {
 return await db.collection('ments').where(videoId).get()
 } catch (e) {
 console.error(e)
 }
}

//查询所有评论
 showAllComment() {
 /const db = wx.cloud.database()
 //接收从wele.js传递过来的id
 var videoId = getApp().requestDetailid;
 db.collection("ments").where({
 videoId: videoId
 }).get({
 suess: res => {
 this.setData({
  ments: res.data,
 })
 },
 fail: err => {
 wx.showToast({
  icon: "none",
  title: '查询评论失败',
 })
 }
 })/
 //这里是使用云函数
 var videoId = getApp().requestDetailid;
 wx.cloud.callFunction({
 name: 'show',
 data: {
 videoId: {videoId}
 }
 }).then(res => {
 this.setData({
 ments: res.result.data,
 })
 })
 
 
 
 },