app.js

require('dotenv').config()

const Promise = require('bluebird')
        , WmiClient = require('wmi-client')

var servers = [
  { host:'10.0.10.95', name:'server1', username:process.env.ad_user, password:process.env.ad_pass },
  { host:'10.0.10.10', name:'server2', username:process.env.ad_user, password:process.env.ad_pass }
]

function connectToServers() {
  Promise.map(servers, (server) => {
    var wmiOptions = {
      host:server.host,
      username:server.username,
      password:server.password
    }
    server.wmi = Promise.promisifyAll(new WmiClient(wmiOptions));
  })
}

/* this will be repeating every 5s */
function getWmiData() {
  Promise.map(servers, (server)=> {
    const data = getWMI(server.wmi)
    console.log(data)
  })
}

/* wmi queries functions */
async function getWMI(wmi) {
  var osVersion = await wmi.queryAsync('SELECT SerialNumber,Caption,Version FROM Win32_OperatingSystem')
  var services = await wmi.queryAsync('select Caption, Status, Started, ProcessId, DisplayName, Name, PathName from Win32_Service')
  return {osVersion, services}
}

Promise.try(() => {
  connectToServers()
}).then(() => {
  getWmiData()
})