javascript - console.log and redirect in node.js doesn't work? -

i make application register , login, not working properly

this users.js routers/users.js

var express = require('express'); var router = express.router(); var passport = require('passport'); var localstrategy = require('passport-local').strategy; var multer = require('multer'); var upload = multer({dest: './uploads'});  var user = require('../models/user');  /* users listing. */ router.get('/', function(req, res, next) {   res.send('respond resource'); });  router.get('/register', function(req, res, next) {   res.render('register', {     'title': 'register'   }); });  router.get('/login', function(req, res, next) {   res.render('login', {     'title': 'login'   }); });  router.post('/register', upload.single('profileimage'), function(req, res, next){   //get form values   var name = req.body.name;   var email = req.body.email;   var username = req.body.username;   var password = req.body.password;   var password2 = req.body.password2;  //check image field   if(req.files && req.files.profileimage){     console.log('uploading file...');     //var profileimage = req.file.filename;    //file info     var profileimageoriginalname = req.files.profileimage.originalname;      var profileimagename         = req.files.profileimage.name;     var profileimagemime         = req.files.profileimage.mimetype;     var profileimagepath         = req.files.profileimage.path;     var profileimageext          = req.files.profileimage.extension;     var profileimagesize         = req.files.profileimage.size;   } else {   //set default image     var profileimagename = 'noimage.png';   }  //form validation   req.checkbody('name','name field required').notempty();   req.checkbody('email','email field required').notempty();   req.checkbody('email','email not valid').isemail();   req.checkbody('username','username field required').notempty();   req.checkbody('password','password field required').notempty();   req.checkbody('password2','passwords not match').equals(req.body.password);    //check errors   var errors = req.validationerrors();    if(errors){     res.render('register', {       errors: errors,       name: name,       email: email,       username: username,       password: password,       password2: password2     });   } else {     var newuser = new user({       name: name,       email: email,       username: username,       password: password,       profileimage: profileimagename     });      //create user     user.createuser(newuser, function(err, user){       if(err) throw err;       console.log(user);     });      //success message     req.flash('success', 'you registered , may log in');      res.location('/');     res.redirect('/');   }  });  passport.serializeuser(function(user, done) {   done(null, user.id); });  passport.deserializeuser(function(id, done) {   user.getuserbyid(id, function(err, user) {     done(err, user);   }); });  passport.use(new localstrategy(   function(username, password, done){     user.getuserbyusername(username, function(err, user){       if(err) throw err;       if(!user){         console.log('unknown user');         return done(null, false, {message: 'unknown user'});       }     user.comparepassword(password, user.password, function(err, ismatch){       if(err) throw err;       if(ismatch){         return done(null, user);       } else {         console.log('invalid password');         return done(null, false, {message: 'invalid password'});       }     });   }); } ));  router.post('/login', passport.authenticate('local',{failureredirect: '/users/login', failureflash: 'invalid username or password'}), function(req, res){   console.log('authentication successful');   req.flash('success', 'you logged in');   res.redirect('/'); });  module.exports = router; 

and user.js models/user.js

var mongoose = require('mongoose'); var bcrypt = require('bcrypt');  mongoose.connect('mongodb://localhost/nodeauth'); var db = mongoose.connection;  //user schema var userschema = mongoose.schema({   username: {     type: string,     index:true   },   password: {     type: string,     required: true,     bcrypt: true   },   email: {     type: string   },   name: {     type: string   },   profileimage: {     type: string   } });  var user = module.exports = mongoose.model('user', userschema);  module.exports.comparepassword = function(candidatepassword, hash, callback){   bcrypt.compare(candidatepassword, hash, function(err, ismatch){     if(err) return callback(err);     callback(null, ismatch);   }); }  module.exports.getuserbyid = function(id, callback){   user.findbyid(id, callback); }  module.exports.getuserbyusername = function(username, callback){   var query = {username: username};   user.findone(query, callback); }  module.exports.createuser = function(newuser, callback){   bcrypt.hash(newuser.password, 10, function(err, hash){     if(err) throw err;     //set hashed pw     newuser.password = hash;     //create user     newuser.save(callback);   }); } 

when using registration, works, however, when using login not work. concretely not show me in cmd whether right or not logs, , redirect function not work.

comand prompt

ok, had quick passport docs , looks authentication fails , redirected url specified in failureredirect prop of passport.authenticate method.

by default passport.authenticate works so, if authentication fails, passport respond 401 unauthorized status, , additional route handlers not invoked. since have specified options method, in particular, url redirect, passport redirection instead of responding 401 unauthorized. shown on provided screen of command prompt. first 302 found response post /users/login afterwards redirected get /users/login.

anyway, pay attention fact additional callbacks not invoked if authentication failed.

so, probably, never reached console.log , res.redirect('/'); because never got authenticated.