ember and sails js authentication

I'm using Ember JS with Sails JS and i'm having a weird problem that drove me crazy for the last two days

Now as the setup i'm using sails-generate-ember-blueprints in sails js aside with jwt, bcrypt and express-jwt

On the Ember side i configured my adapters as follow

in the adapter folder "application.js"

import DS from 'ember-data';
import DataAdapterMixin from 'ember-simple-auth/mixins/data-adapter-mixin';

export default DS.RESTAdapter.extend(DataAdapterMixin, {
authorizer: 'authorizer:oauth2',
host: 'http://localhost:1338',
});

in the authenticators folder "oauth2.js"

import OAuth2PasswordGrant from 'ember-simple-auth/authenticators/oauth2-password-grant';

export default OAuth2PasswordGrant.extend({
serverTokenEndpoint:'http://localhost:1338/auths/login'
});

and the authorizer folder "oauth2.js"

import OAuth2Bearer from 'ember-simple-auth/authorizers/oauth2-bearer';

export default OAuth2Bearer.extend();

so far so good. now i created an authentication controller in the sails project "AuthController.js" and pasted this code which was taken from another project

 var jwt = require("jsonwebtoken");
 var bcrypt = require("bcrypt");

 module.exports = {
    login: function(req, res) {
        if (!req.body.username || !req.body.password) {
        res.badRequest({error:'missing info!'});
        return;
     }
    User.findByEmail(req.body.username).exec(function(err, user) {
            if (err) {
                    return res.badRequest({
                            error: err
                    });
            }
            if (!user || user.length < 1) {
                    return res.badRequest({
                            error: 'No such user'
                    });
            }

            bcrypt.compare(req.body.password, user[0].password, 
  function(err, result) {
                    if (err || !result) {
                            return res.badRequest({
                                    error: 'invalid Password'
                            });
                    } else {
                            issueTokens(user, res);
                    }
            });
    });
},

logout: function(req, res) {
        req.logout();
        res.send({
                success: true,
                message: 'logout Successful'
        });
    }
};

function issueTokens(user, res) {
var token = jwt.sign(user[0], sails.config.jwt.secret, {
        expiresIn: sails.config.jwt.expiration_time_in_minutes
});

res.send({
        user: user[0],
        access_token: token
});

};

i have a model in the Ember Application "user.js" which have an email and password attributes both set as DS.attr('string')

i registered my first user using postman and when i tried to login it gives me an error from the bcrypt.compare function i thought it might be because bcrypt is trying to compare a password that isn't encrypted in the first place so i tried to register a user simply by

signUp(email, password){
  this.store.createRecord('user', {
    email : email,
    password : password
    }).save();
 }

it did register new user and bcrypted the password, but when i try to login using the same user i created it i get an error

POST : localhost:1338/auths/login/ net::ERR_EMPTY_RESPONSE

and in the terminal from the sails side i get this error

/Users/Haboosh/Desktop/pulse/pulse-server/node_modules/jsonwebtoken/sign.js:97 throw err; ^

Error: Expected "payload" to be a plain object. at validate (/Users/Haboosh/Desktop/pulse/pulse-server/node_modules/jsonwebtoken/sign.js:34:11) at validatePayload (/Users/Haboosh/Desktop/pulse/pulse-server/node_modules/jsonwebtoken/sign.js:56:10) at Object.module.exports [as sign] (/Users/Haboosh/Desktop/pulse/pulse-server/node_modules/jsonwebtoken/sign.js:108:7) at issueTokens (/Users/Haboosh/Desktop/pulse/pulse-server/api/controllers/AuthController.js:53:18) at /Users/Haboosh/Desktop/pulse/pulse-server/api/controllers/AuthController.js:36:9

what am i doing wrong people ?

my login function is like this

login(email, password){
    this.get('session').authenticate('authenticator:oauth2', email, password).then(() => {
    this.transitionToRoute('index')
    })
 };