1
good afternoon.
I am learning JWT and Passport and I am facing problems with the same, the problem is the following, I can log in and save in Localstorage, and redirect to another page however, even entering the correct data I get a 401 (Unauthorized). I don’t know why.
My file where ta Passport and JWT:
const express = require('express');
const bodyParser = require('body-parser');
const _ = require("lodash");
const app = express();
const jwt = require('jsonwebtoken');
const passport = require('passport');
const passportJWT = require('passport-jwt');
const ExtractJwt = passportJWT.ExtractJwt;
const JwtStrategy = passportJWT.Strategy;
app.use(passport.initialize());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
var jwtOptions = {}
jwtOptions.jwtFromRequest = ExtractJwt.fromAuthHeaderWithScheme('jwt');
jwtOptions.secretOrKey = 'tasmanianDevil';
var strategy = new JwtStrategy(jwtOptions, function (jwt_payload, next) {
console.log('payload received', jwt_payload);
var user = users[_.findIndex(users, { id: jwt_payload.id })];
if (user) {
next(null, user);
} else {
next(null, false);
}
});
passport.use(strategy);
var users = [
{
id: 1,
name: 'jonathanmh',
password: '%2yx4'
},
{
id: 2,
name: 'test',
password: 'test'
}
];
app.post("/login", function (req, res) {
if (req.body.name && req.body.password) {
var name = req.body.name;
var password = req.body.password;
}
var user = users[_.findIndex(users, { name: name })];
if (!user) {
res.status(401).json({ message: "no such user found" });
}
if (password === user.password) {
var payload = { id: req.body.id };
var token = jwt.sign(payload, jwtOptions.secretOrKey);
res.send({ message: "ok", token: token });
} else {
res.status(401).json({ message: "passwords did not match" });
}
});
app.get('/pageOwnerAgency', passport.authenticate('jwt', { session: false }), (req, res) => {
res.send({message: 'oi'})
});
require('./server/routes')(app);
require('./server/cors')(app);
module.exports = app;
My file where I do the POST for the route of Login where the Token and is redirected to the route /pageOwnerAgency, i am redirected however, I get on the console a 401:
import React from 'react';
import axios from 'axios';
import Body from '../components/Body/Body';
import { ContainerLogin, InputLogin, ButtonLogin } from './styled.js';
import { Redirect } from 'react-router-dom'
class Login extends React.Component {
constructor() {
super();
this.state = {
name: '',
password: '',
teste: false,
}
}
handleInput = (e) => {
let value = e.target.value;
this.setState({ [e.target.name]: value })
}
handleLogin = () => {
axios.post('/login', { name: this.state.name, password: this.state.password })
.then(res => {
localStorage.setItem('jwt', res.data.token);
window.location.reload();
})
.catch(error => console.log(error.response.data.message))
}
render() {
if (localStorage.getItem('jwt')) return <Redirect to="/pageOwnerAgency" />
return (
<Body>
<ContainerLogin>
<InputLogin onChange={this.handleInput} name="name" placeholder="USERNAME" />
<InputLogin onChange={this.handleInput} name="password" placeholder="PASSWORD" type="password" />
<ButtonLogin onClick={this.handleLogin}> Login </ButtonLogin>
</ContainerLogin>
</Body>
)
}
}
export default Login;
Someone can help me ?
I was testing your code, if the user is right and the wrong password he Uga, does the following puts a Return on
if (!user) {
 return res.status(401).json({ message: "no such user found" });
 }E forehead, see what’s returning on the console, if possible test the route with Postman, if not already done.– Chance