I am trying to add passport service to my app , but I am getting the following error, I have already installed all the dependencies and tried searching for this error but got none , please Help

passport.use(new JwtStrategy(opts, function(jwt_payload, done){         
     TypeError: passport.use is not a function
     at module.exports (/home/udit/Goserv/app/config/passport.js:11:14)
     at Object.<anonymous> (/home/udit/Goserv/app/server/server.js:9:45)
     at Module._pile (module.js:410:26)
     at Object.Module._extensions..js (module.js:417:10)
     at Module.load (module.js:344:32)
     at Function.Module._load (module.js:301:12)
     at Function.Module.runMain (module.js:442:10)
     at startup (node.js:136:18)
     at node.js:966:3

Here is the passport.js file:

var JwtStrategy = require('passport-jwt').Strategy,
    ExtractJwt = require('passport-jwt').ExtractJwt;

var User = require('../model/user.js');
var config = require('../config/database');

module.exports = function(passport){
    var  opts = {};
    opts.secretOrKey =  config.secret;
    opts.jwtFromRequest = ExtractJwt.fromAuthHeader();
    passport.use(new JwtStrategy(opts, function(jwt_payload, done){
        User.find({id: jwt_payload.id}, function(err, user){
            if (err) {
                return done(err, false);
            }
            if (user) {
                return done(null, user);
            } else {
                return done(null, false);
            }
        })
    }));
}

I am trying to add passport service to my app , but I am getting the following error, I have already installed all the dependencies and tried searching for this error but got none , please Help

passport.use(new JwtStrategy(opts, function(jwt_payload, done){         
     TypeError: passport.use is not a function
     at module.exports (/home/udit/Goserv/app/config/passport.js:11:14)
     at Object.<anonymous> (/home/udit/Goserv/app/server/server.js:9:45)
     at Module._pile (module.js:410:26)
     at Object.Module._extensions..js (module.js:417:10)
     at Module.load (module.js:344:32)
     at Function.Module._load (module.js:301:12)
     at Function.Module.runMain (module.js:442:10)
     at startup (node.js:136:18)
     at node.js:966:3

Here is the passport.js file:

var JwtStrategy = require('passport-jwt').Strategy,
    ExtractJwt = require('passport-jwt').ExtractJwt;

var User = require('../model/user.js');
var config = require('../config/database');

module.exports = function(passport){
    var  opts = {};
    opts.secretOrKey =  config.secret;
    opts.jwtFromRequest = ExtractJwt.fromAuthHeader();
    passport.use(new JwtStrategy(opts, function(jwt_payload, done){
        User.find({id: jwt_payload.id}, function(err, user){
            if (err) {
                return done(err, false);
            }
            if (user) {
                return done(null, user);
            } else {
                return done(null, false);
            }
        })
    }));
}

• javascript
• node.js
• express
• passport.js

• How are you requireing your passport.js file? – Ben Fortune Commented Sep 6, 2016 at 8:32
• You don't have a passport variable defined in your file. – Vsevolod Goloviznin Commented Sep 6, 2016 at 8:33
• var passport = require('../config/passport')('passport'); – Udit Commented Sep 6, 2016 at 8:34
• Even if i define the variable here I'm still getting the error! Shall i add server.js code too?? – Udit Commented Sep 6, 2016 at 8:39
• 1 @Udit you are passing a string containing the word 'passport' to your module, instead of a reference to the passport module. – robertklep Commented Sep 6, 2016 at 11:18

2 Answers 2

you will get this error if import it like this

import * as passport from 'passport';

should be

import passport from 'passport';

You need to require passport.js from your app.js file with the following mand:

require('./config/passport')(passport);

All the passport-related mands in your app.js file should be:

const passport = require('passport');

app.use(passport.initialize());
app.use(passport.session());

require('./config/passport')(passport);