promise sample

promise.sample

/*
 * GET home page.
 */
 
var Promise = require('promise'); 
var Request = require('request');

exports.index = function(req, res){
   
   var aprovada  = function(httpresponse) {
console.log('Aprovada !!!');      
      res.render('index',{'resposta' : 'OK, tamanho: ' 
         + httpresponse.body.length});
   };
   
   var rejeitada = function(httpresponse) {
      res.render('index',{'resposta' : 'Erro: ' 
         + httpresponse.response.statusCode});
   };
   
   var mostrar = function(httpresponse) {
      console.log('Mostrar !!! status: ' 
         + httpresponse.response.statusCode);            
      return new Promise(function(resolve,reject) {
         resolve(httpresponse);
      });
   };
   
   var promise = new Promise(function (resolve, reject) {
        console.log('Entrou no comando da promise '); 
        Request('http://www.google.com', function (err, resp, body) {
          if (err) reject({"response" : resp, "body" : body});
          else resolve({"response" : resp, "body" : body});
        });
   })
   .then(mostrar)
   .then(aprovada, rejeitada)
   ;
   
};