Próbuję uwierzytelnić się za pomocą OAuth w NodeJS i otrzymuję ten błąd:

Błąd podczas pobierania tokenu żądania OAuth: {statusCode: 401, data: 'n n Aplikacje desktopowe obsługują tylko wartość oauth_callback oob o n oauth / request_token n'}

Oto mój kod (server.js)

var express = require('express');
var util = require('util');
var oauth = require('oauth');

var app = express.createServer();

// Get your credentials here: https://dev.twitter.com/apps
var _twitterConsumerKey = "1";
var _twitterConsumerSecret = "2";

var consumer = new oauth.OAuth(
    "https://twitter.com/oauth/request_token", "https://twitter.com/oauth/access_token", 
    _twitterConsumerKey, _twitterConsumerSecret, "1.0A", "http://127.0.0.1:8080/sessions/callback", "HMAC-SHA1");

app.configure('development', function(){
    app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
    app.use(express.logger());
    app.use(express.cookieParser());
    app.use(express.session({ secret: "very secret" }));

    app.use(function(req, res, next) {
        res.locals.user = req.session.user;
        next();
    });
});

app.get('/sessions/connect', function(req, res){
    consumer.getOAuthRequestToken(function(error, oauthToken, oauthTokenSecret, results){
        if (error) {
            res.send("Error getting OAuth request token : " + util.inspect(error), 500);
        } else {  
            req.session.oauthRequestToken = oauthToken;
            req.session.oauthRequestTokenSecret = oauthTokenSecret;
            res.redirect("https://twitter.com/oauth/authorize?oauth_token="+req.session.oauthRequestToken);      
        }
    });
});

app.get('/sessions/callback', function(req, res){
    util.puts(">>"+req.session.oauthRequestToken);
    util.puts(">>"+req.session.oauthRequestTokenSecret);
    util.puts(">>"+req.query.oauth_verifier);
    consumer.getOAuthAccessToken(req.session.oauthRequestToken, req.session.oauthRequestTokenSecret, req.query.oauth_verifier, function(error, oauthAccessToken, oauthAccessTokenSecret, results) {
        if (error) {
            res.send("Error getting OAuth access token : " + util.inspect(error) + "["+oauthAccessToken+"]"+ "["+oauthAccessTokenSecret+"]"+ "["+util.inspect(results)+"]", 500);
        } else {
            req.session.oauthAccessToken = oauthAccessToken;
            req.session.oauthAccessTokenSecret = oauthAccessTokenSecret;

            res.redirect('/home');
        }
    });
});

app.get('/home', function(req, res){
    consumer.get("http://twitter.com/account/verify_credentials.json", req.session.oauthAccessToken, req.session.oauthAccessTokenSecret, function (error, data, response) {
        if (error) {
            res.redirect('/sessions/connect');
            // res.send("Error getting twitter screen name : " + util.inspect(error), 500);
        } else {
            var parsedData = JSON.parse(data);

            // req.session.twitterScreenName = response.screen_name;    
            res.send('You are signed in: ' + parsedData.screen_name);
        } 
    });
});

app.get('*', function(req, res){
    res.redirect('/home');
});

app.listen(8080);

Z góry dziękuję.