Answer example for http://stackoverflow.com/questions/25344045/building-an-object-from-multiple-asynchronous-sources-in-node-js-express-js

gistfile1.js

var operations = {
  'users': http.get.bind(http, 'http://url-one'),
  'posts': http.get.bind(http, 'http://url-two'),
};

async.series(operations, function(err, results){
    if (err) {
        throw err;
    }
    res.send(results);
});