JedWatson

var doQuery = function() {
	
	// passing an object to async.parallel will cause it to collect their results
	// and provide them to the callback in an object with the same keys.
	
	async.parallel({
		// functions are passed a callback with the standard argument pattern of fn(err, result)
		count: count.exec,
		query: query.exec
	}, function(err, results) {

JedWatson

var transform = function(contents, doneTransform) {
	
	var authExpiry = 60 * 60 * 1000,
		authId = uuid.v4(),
		authKey = 'file:auth:' + authId;
	
	redis.client.set(authKey, JSON.stringify({
		userId: req.user.id
	}));
	redis.client.expire(authKey, authExpiry);