Purging Imgix CDN with node.js

imgix_purge_node.js

var Curl = require( 'node-libcurl' ).Curl;
var querystring = require( 'querystring' );
var IMGIX_API_KEY = '';

function imgixPurge(url){
  var curl = new Curl();        
  curl.setOpt(Curl.option.URL, 'https://api.imgix.com/v2/image/purger');        
  curl.setOpt('HTTPAUTH', Curl.auth.BASIC);
  curl.setOpt(Curl.option.USERNAME, IMGIX_API_KEY);
  curl.setOpt(Curl.option.TIMEOUT, 20);
  curl.setOpt(Curl.option.HTTPHEADER, ['User-Agent: node-libcurl/1.0']);
  // curl.setOpt( Curl.option.VERBOSE, true );        
  curl.setOpt(Curl.option.POSTFIELDS, querystring.stringify({'url': url}));
  curl.perform();
  curl.on('error', curl.close.bind(curl));
  curl.on('end', function(statusCode, body, headers){
    if (statusCode === 200) {
      console.log('success');
    } else {
      console.log('something went wrong');
    }
    curl.close();
  });
}