server.js

var express   = require("express");
var app       = express();
var http      = require('http');
var request   = require('request');
var cheerio = require('cheerio');
var corser = require("corser");
var async = require("async");
var bodyParser = require('body-parser');


app.use(corser.create());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());

app.get('/consulta/:param', function(req, res){
  var parametro = req.params.param;

  find(req)(parametro, function(error, result){
    if(error)
      return res.send(error);

    res.send(result);
  });
});

app.post('/consulta', function(req, res){
  if(!Array.isArray(req.body.phones)){
    return res.send(400, {error: 'Fones must be Array.'});
  }
  async.map(req.body.phones, find(req), function(error, response){
    if(error)
      return res.send(error);

    console.log(arguments);
    res.send(response);
  });
});

function find(req) {
  return function (number, callback) {

    var url = 'http://www.qualoperadora.net/';

    request({
      uri: url,
      headers: {
        'cookie': 'PHPSESSID=pgflhdqa2ltmirougo2cjf79f0; _jsuid=3103488192; USID=3362150133-1399133560.37; _first_pageview=1; heatmaps_g2g_100536567=no; p_cachedDomain=www.qualoperadora.net; p_cachedDeals=%5B%5D; __utma=7597106.1768311926.1399133561.1399147733.1399992202.3; __utmb=7597106.2.10.1399992202; __utmc=7597106; __utmz=7597106.1399133561.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _eventqueue=%7B%22heatmap%22%3A%5B%5D%2C%22events%22%3A%5B%5D%7D; __utma=112029058.1497549882.1399133567.1399147736.1399992206.3; __utmb=112029058.2.10.1399992206; __utmc=112029058; __utmz=112029058.1399133567.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)',
        'user-agent': req.get('user-agent'),
        'accept-language': req.get('accept-language')
      },
      method: "POST",
      form: {
        telefone: number,
        ref2115: url
      }

    }, function(error, response, body){
      // res.send(response.statusCode);

      if(error){
        return callback(error);
      }

      if(response.statusCode == 200){
        var $ = cheerio.load(body);
        var result = $('#resultado > span')
        var data = {
          telefoneOriginal: number,
          telefone: result.eq(0).html(),
          operadora: result.eq(1).html(),
          portabilidade: result.eq(2).text().trim().toLowerCase() == 'sim',
          estado: result.eq(3).html()
        }
        console.log(data);
        callback(null, data);
      }
    });
  }
}

app.listen(process.env.PORT || 3000);
console.log('starting server at localhost:3000');