Sample of upload file to Google Cloud Stoage.

gcs.js

/**
 * Sample of upload file to Google Cloud Stoage.
 * 
 * 1. Setup a bucket and grant write permission for All Users on Google Cloud Stoage.
 *
 * 2. Install dependency 'request'
 *
 * 3. Set 'filename' and 'bucket'
 * 
 * 4. Run!!
 */
var request = require('request'),
  fs = require('fs');

var filename = 'filename';
var bucket = 'bucket';
fs.createReadStream(filename).pipe(request.post({
  url: 'https://www.googleapis.com/upload/storage/v1beta2/b/' + bucket + '/o?uploadType=media&name=' + filename
}, function(err, res, body) {
  if (err) {
    console.error('Upload failed:\n', err);
  } else {
    console.log('Upload successful!  Server responded with:\n', body);
  }
}));