rendering parties of other site with express - node.js

Question

I have a basic Express application with one function that uses nodejs request and takes some divs using selectors. After that, I want to render this with jade.
var express = require('express');
var voc = require('vocabulaire');
var async = require('async');
var router = express.Router();
router.get('/', function (req, res) {
res.render('index', {title: 'Espace de la diffusion'});
});
var result;
router.get('/search/:mot', function (req, res) {
async.series([
function () {
result = main(['conj', req.params.mot]);
console.log('in 1');
},
function () {
res.render('index', {title: 'Espace de la diffusion', data: result});
res.send(html);
console.log('in 2');
},
]);
});
module.exports = router;
var request = require('request')
, cheerio = require('cheerio');
function doit(verbe, result) {
var url = 'http://www.babla.ru/%D1%81%D0%BF%D1%80%D1%8F%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F/%D1%84%D1%80%D0%B0%D0%BD%D1%86%D1%83%D0%B7%D1%81%D0%BA%D0%B8%D0%B9/' + verbe;
request(url, function (err, resp, body) {
$ = cheerio.load(body);
var temps = $('.span4.result-left h5');
if (temps.length == 0) {
console.log('results not found');
}
else {
console.log('result found');
debugger;
return $('.span4.result-left');
}
});
}
function main(arg) {
switch (arg[0]) {
case 'conj':
return doit(arg[1]);
break;
default:
console.log('unknown parameter');
break;
}
}
I used async library for be sure that my result is ready to be rendered but in console I see next:
GET /search/est - - ms - -
in 1
result found
and debugger followed me to nodejs function makeTick()..
I don't know what to do.. help me please.

Answer 1

Your async.series() functions are missing the callback parameter that you need to call in order for the next function to execute. However, you don't really need async to just do a single async task:
main(['conj', req.params.mot], function(err, result) {
res.render('index', {title: 'Espace de la diffusion', err: err, data: result});
});
// ...
function doit(verbe, result, callback) {
var url = 'http://www.babla.ru/%D1%81%D0%BF%D1%80%D1%8F%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F/%D1%84%D1%80%D0%B0%D0%BD%D1%86%D1%83%D0%B7%D1%81%D0%BA%D0%B8%D0%B9/' + verbe;
request(url, function (err, resp, body) {
if (err)
return callback && callback(err);
$ = cheerio.load(body);
var temps = $('.span4.result-left h5');
if (temps.length == 0) {
callback && callback();
}
else {
callback && callback(null, $('.span4.result-left'));
}
});
}
function main(arg, callback) {
switch (arg[0]) {
case 'conj':
doit(arg[1], callback);
break;
default:
callback && callback(new Error('unknown parameter'));
break;
}
}