A server for pingme's online status

index.js

import express from 'express'

const app = express()
let myTimer = null
let online = false 
const timeout = 30 * 60 * 1000 // number of milliseconds in 30 minutes

app.post('/pingme', (req,res) => {
  online = true
  clearTimeout(myTimer)
  myTimer = setTimeout(() => {
    offline = false
  }, timeout)
 res.send()
})

app.post('/online', (req,res) => {
  res.json({online}
})