将co *库合并到异步代码中

Question

我对如何使用co包使我的后续异步代码更具可读性感到困惑 https://www.npmjs.com/package/co

async.each(longList, function(address, callback) {

  googleMapsClient.geocode({
    address: address
    }, function(err, response) {

      // send the response to database
      http.request(options, function(res) {

        // now process the next address
        callback();
      });

   }

}, function(err) {
   if (err) throw err;
}

我也欢迎上面的任何其他编码风格，无论代码更清洁