微信小程序云调用促销

// 云函数入口文件
const cloud = require('wx-server-sdk')
cloud.init()

// 云函数入口函数
exports.main = async (event, context) => {
  try {
    const db = cloud.database()
    const _ = db.command
    const res = await db.collection('coupons').add({
      data: {
        userId: event.userId,
        discount: event.discount,
        expireTime: new Date(event.expireTime)
      }
    })
    return res
  } catch (err) {
    console.error(err)
    return { success: false, error: err }
  }
}

wx.cloud.callFunction({
  name: 'issueCoupon',
  data: {
    userId: 'user123',
    discount: 10,
    expireTime: '2023-12-31T23:59:59Z'
  },
  success: res => {
    console.log('优惠券发放成功', res)
  },
  fail: err => {
    console.error('优惠券发放失败', err)
  }
})