Remove old servers from NewRelic Server app

remove_servers_from_newrelic.js

#!/usr/bin/env node
/*
  Deletes servers from New Relic Server app that were last seen before cutoff date
*/
const https = require("https")

const cutoff = new Date("2017-10-15T00:00:00.001") 
const filter = 'filter[reported]=false&sort[health_status]=false'
var promises = []

if (process.argv.length != 3) {
  console.error("[ERROR] You need to pass newrelic API key as argument.") 
  process.exit(1)
}
const apiKey = process.argv[2]

const getServersOpts = {
    hostname: 'api.newrelic.com',
    port: 443,
    path: '/v2/servers.json?' + filter,
    method: "GET",
    headers: {
      'X-Api-Key': apiKey
    }
}

var processItem = function (prs,x) {
  return new Promise((resolve,reject)=> {
    const req = https.request({
      hostname: 'api.newrelic.com',
      port: 443,
      timeout: 100,
      path: '/v2/servers/' + prs[x].id + ".json",
      method: "DELETE",
      headers: {
        'X-Api-Key': apiKey
      }
   }, (res) => {
       res.on('end', ()=> {
         if (res.statusCode != 200) {
           console.log("[ERROR]", res.statusCode, res.statusMessage)
           reject(res.statusCode)
         }
         console.log(x, prs[x].id, prs[x].name, "DELETED")
         processItem(prs, x + 1);
       })
       res.on('data', (data) => { 
          //console.log("message",data.toString()) 
       })
       
       resolve("all done")
     })

     req.on('error', (e) => {
      console.error("error", e);
      reject(e)
    })
    
    req.end()
  })
}

var server = new Promise((resolve,reject)=> {
  let data = ''
  const req = https.get(getServersOpts, (res) => {
    if (res.statusCode != 200) {
      console.error("[ERROR]", res.statusCode, res.statusMessage)
      process.exit(1)
    }
    res.on('data', (chunk) => data += chunk)
    res.on('end',  () => resolve(data))
  })

}).catch((e) => console.error("ERROR", e))

var servers = server.then((data)=>{
    if (data.length == 0){
      return null
    }
    return JSON.parse(data)['servers']
})
.then((d)=> {
  if (d == undefined) { 
    return(null)
  }
  d.forEach(i => {
      last_reported_at = new Date (i.last_reported_at)
      if ( last_reported_at < cutoff){
      promises.push({ 
      id: i.id, name: i.name, last: new Date(i.last_reported_at) })
      }
  })
      return promises
})
    .then((prs) =>{
    if(prs.length <= 0){
      console.error("No items found that match the criteria:\n  Last seen:\t", cutoff, "\n  Filter:\t", filter)
      process.exit(1)
    }
    console.log("Found", promises.length, "items")
    return processItem(prs,0)
    }).catch((e) => console.error("[ERROR]", e))