gas-gcp-zones.js

/*
  Apps Script code snippet based on GCPping.com
  @author Ivan Kutil
*/
var URLS = {
  "asia-east1": "http://104.155.201.52/ping",
  "asia-east2": "http://35.220.162.209/ping",
  "asia-northeast1": "http://104.198.86.148/ping",
  "asia-south1": "http://35.200.186.152/ping",
  "asia-southeast1": "http://35.185.179.198/ping",
  "australia-southeast1": "http://35.189.6.113/ping",
  "europe-north1": "http://35.228.170.201/ping",
  "europe-west1": "http://104.199.82.109/ping",
  "europe-west2": "http://35.189.67.146/ping",
  "europe-west3": "http://35.198.78.172/ping",
  "europe-west4": "http://35.204.93.82/ping",
  "europe-west6": "http://34.65.3.254/ping",
  "global": "http://35.186.221.153/ping",
  "northamerica-northeast1": "http://35.203.57.164/ping",
  "southamerica-east1": "http://35.198.10.68/ping",
  "us-central1": "http://104.197.165.8/ping",
  "us-east1": "http://104.196.161.21/ping",
  "us-east4": "http://35.186.168.152/ping",
  "us-west1": "http://104.199.116.74/ping",
  "us-west2": "http://35.236.45.25/ping"
};

function RUN_LATENCY() {
   Object
     .keys(URLS).map(function (key) {
          var startTime = new Date()
          UrlFetchApp.fetch(URLS[key]);
          var endTime = new Date();
          var latency = endTime - startTime;
          return {
            region: key,
            latency: latency
          }
      })
      .sort(function (b,a) { return b.latency - a.latency})
      .forEach(function (data) { Logger.log("%s: %s ms", data.region, data.latency)})
}