huiting/cloudfunctions/getUser/index.js

// 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) => {
  let {
    OPENID
  } = cloud.getWXContext()

  return db.collection('user').where({
    _id: OPENID
  }).get()
}