node.jsでGoogle Cloud Strageのファイル操作する例

gcp-storage.js

var projectId = process.env.GCLOUD_PROJECT_ID
var gcloud = require('gcloud')({
  projectId: projectId,
  keyFilename: '/local/path/to/keyfile'
});
var storage = gcloud.storage();
var bucket = storage.bucket('storageName');

var options = {
	destination: '2015/05/file',
	validation: 'crc32c'
}

bucket.upload("/local/path/to/file", options, function(err, file){
	if (err) {
		console.log("err: " + err);
	} else if (!file) {
		console.log("empty");
	} else {
		console.log("ok");
		bucket.getFiles(function (err, files, nextQuery, resp) {
			console.log("get files");
			files.forEach(function(file){
				console.log("file name: " + file.name);
				file.makePublic(function(err, resp){
					console.log(err);
				});
			});
			console.log("done.");
		});
	}
});