gistfile1.js

var sync = require('synchronize');

function executeQuery(qryString, cb) {
  setTimeout(function() {
		cb(null, qryString);
	}, 1500);
}

sync.fiber(function() {
	var query = function(qryString) {
		return sync.await(executeQuery(qryString, sync.defer()));
	}
	
	var result = query("SELECT * FROM *");
	console.log(result);
});