實聯制統計人數(請把此服務網址做成QRCode)

const express = require('express')
const parser = require('ua-parser-js')
const app = express()
const port = 3000
const code = '111121314151617'//場所代碼
var count=0//人次
app.get('/', (req, res) => {
  let ua = parser(req.headers['user-agent'])
  let sep = ua.os.name === 'iOS'? '&' : '?'
  count = count+1
  console.log("==人數：",count,'本次用戶OS為：',ua.os.name)
  res.redirect(`sms:1922${sep}body=場所代碼：${code} 本簡訊是簡訊實聯制發送，限防疫目的使用(人次${count})`)
})
app.listen(port, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})