Passport: Unknown authentication strategy "local"

Question

I'm new to NodeJS and I try to build a login/registration system. Registration works fine but I'm currently unable to login.

I find a example app using passport and nodejs, so based on this example I build the registration form and the login form. http://blog.robertonodi.me/node-authentication-series-email-and-password/

When I try to login I get an 'Unknown authentication strategy "local" error'. Can anybody explain what I'm doing wrong?

My code

(edit: added some changes from answers/comments and filenames)

Express config (config/express.config.js)

app.use(session({     store: new MongoStore({         url: 'mongodb://' + config.url + ':' + config.port + '/' + config.name     }),     secret: 'secretkey',     key: 'skey.sid',     resave: false,     saveUninitialized: false,     cookie : {         maxAge: 604800000 //7 days in miliseconds     } }));  app.use(passport.initialize()); app.use(passport.session()); require(path.join(__dirname, 'auth.config'))(passport); //Load passport config  app.use(function(req, res, next) {     req.resources = req.resources || {};    // res.locals.app = config.app;     res.locals.currentUser = req.user;     res.locals._t = function (value) { return value; };     res.locals._s = function (obj) { return JSON.stringify(obj); };     next(); }) 

Passport config (config/auth.config.js)

var path = require('path');  var passport=require('passport'); var User = require(path.join(__dirname, '..', 'models', 'user.model'));  module.exports = function(passport) {      passport.serializeUser(function(user, done){         done(null, false);     });     passport.deserializeUser(function(id, done){         console.log("deserializeUser called", id);         User.findById(id, function (err, user) {             done(err, user);         });     });      //load strategy files     require(path.join(__dirname, 'strategies', 'local-strategy'));     //TODO: Facebook     //TODO: Twitter     //TODO: Google } 

Local strategy (/config/strategies/local-strategy.js)

var passport = require('passport'); var LocalStrategy = require('passport-local').Strategy; var mongoose = require('mongoose'); var User = mongoose.model('User');  module.exports = function () {     console.log("LocalStrategy called");     passport.use(new LocalStrategy({         usernameField : 'username',         passwordField : 'password'     },     function(username, password, done) {         User.authenticate(username, password, function(err, user) {             if (err) {                 return done(err);             }              if(!user) {                 return done(null, false, {message: 'Invalid username or password'});             }              return done(null, user);         })     })) } 

Auth Controller (login only) (/controllers/auth.controller.js)

module.exports.loginUser = function(req,res, next) {     console.log("Auth.config", path.join(__dirname, 'strategies', 'local-strategy'))    passport.authenticate('local', function (err, user, info) {        if (err || !user) {            console.log("Error", info);            return res.status(400).send(info);        }         req.logIn(user, function(err) {            if (err) {               return next(err);               // return res.status(404).send("Username or password incorrect");            }        })         res.status(200).json(user);    })(req, res, next); } 

Answer 1

You forgot to import passport config file in your app.js.

import passport config after initializing passport.

app.use(passport.initialize()); app.use(passport.session()); // Add the line below, which you're missing: require('./path/to/passport/config/file')(passport); 

Answer 2

i have done like this and it worked

$npm install passport-local

var passport = require('passport'); var LocalStrategy = require('passport-local').Strategy; /* this should be after passport*/     passport.use(new LocalStrategy(   function(username, password, done) {     User.findOne({ username: username }, function(err, user) {       if (err) { return done(err); }       if (!user) {         return done(null, false, { message: 'Incorrect username.' });       }       if (!user.validPassword(password)) {         return done(null, false, { message: 'Incorrect password.' });       }       return done(null, user);     });   } ));