[GAS] create short url (google, bitly)

01_google.js

// Google URL Shortener
// https://developers.google.com/url-shortener/v1/getting_started

function createGoogleShortUrl(url) {
  var result = UrlShortener.Url.insert({
    longUrl: url
  });
  return result.id;
}

02_bitly.js

// Bitly
// https://dev.bitly.com/links.html#v3_shorten

const OAUTH_TOKEN = '[OAUTH_TOKEN]';

function createBitlyUrl(url) {
  var endpoint = 'https://api-ssl.bitly.com/v3/shorten?access_token=' + OAUTH_TOKEN + '&longUrl=' + url;
  var result = UrlFetchApp.fetch(endpoint, {//
    method: "GET",
    contentType: "application/json;"
  });
  var json = JSON.parse(result.getContentText('utf-8'));
  return json.data.url;
}