node.js - How to return a JSON object using NodeJS, Passport, mongoose, & MongoDB -

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i'm new nodejs, passport, , mongo. i'm trying set basic local authentication, successful, however, when try return entire object returns empty array.

my node setup:

var express = require('express'); var routes = require('./routes'); var user = require('./routes/user'); var http = require('http'); var path = require('path'); var passport = require('passport'); var localstrategy = require('passport-local').strategy; var mongoose = require('mongoose/');  mongoose.connect('mongodb://localhost:27017/eidata');  var schema = mongoose.schema; var userdetail = new schema({       username: string,       password: string,   fullname: string }, {   collection: 'userlist' }); var userdetails = mongoose.model('userlist', userdetail);  var user_obj = user;  var app = express();  // environments app.set('port', process.env.port || 3000); app.set('views', path.join(__dirname, 'views')); app.set('view engine', 'jade'); app.use(express.favicon()); app.use(express.logger('dev')); app.use(express.json()); app.use(express.urlencoded()); app.use(express.methodoverride()); app.use( express.cookieparser() ); app.use(express.session({ secret: 'plsrespond' })); app.use(passport.initialize()); app.use(passport.session()); app.use(app.router); app.use(express.static(path.join(__dirname, 'public')));

so, tactic set global variable named user_obj, , set user object passport returns. however, feel might scope problem, since global variable empty when call it.

here's passport authentication logic:

passport.use(new localstrategy(function(username, password, done) {   process.nexttick(function() {     userdetails.findone({       'username': username,      }, function(err, user) {   if (err) {     return done(err);   }    if (!user) {     return done(null, false);   }    if (user.password != password) {     return done(null, false);   }    return done(null, user); });   }); }));

lastly, success/failure redirects, , attempt call user_obj global variable:

app.post('/login',   passport.authenticate('local', {     successredirect: '/loginsuccess',     failureredirect: '/loginfailure'   }) );  app.get('/loginfailure', function(req, res, next) {   res.send('invalid code!'); });  app.get('/loginsuccess', function(req, res, next) {    res.json(user_obj)  });


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