I'm developing a register/login website which includes all features to make it work in an efficient and secure way using reactJS, NodeJS and Mysql. Everything was working fine until I used express-session. In fact, when a user logs in, he will be redirected to a home page (obviously a session will be created) but when the user refreshes the page, It is expected to stay on the home page but the behavior I got is losing the session, thus being redirected to login page. I looked for a fix and I already tried enabling credentials with Axios in the frontEnd and Cors in the backEnd but the problem is persisting. This is my code: server.js
const express = require('express');
const app = express();
const mysql = require('mysql2');
const cors = require('cors');
const validator = require('validator');
const {body, validationResult} = require('express-validator');
const session = require('express-session');
const cookieParser = require('cookie-parser');
app.use(express.json());
app.use(cors({
origin: ['http://localhost:3000'],
methods: ['GET', 'POST'],
credentials: true,
}
));
app.use(express.urlencoded({extended: true}));
app.use(cookieParser());
app.use(session({
name: 'session',
secret: 'crud',
resave: false,
saveUninitialized: false,
cookie: {
expires: 60 * 30,
sameSite: 'strict',
}
}
app.post('/login', (req, res) => {
const mail = validator.escape(req.body.mail);
const pass = validator.escape(req.body.pass);
const sqlSelect = 'SELECT * FROM login WHERE mail = ? AND pass = ?';
db.query(sqlSelect, [mail, pass], (err, result) => {
if (err) {
console.log(err);
}
if (result.length > 0) {
req.session.user = result;
req.session.loggedIn = true;
console.log(req.session.user);
res.send({message: 'success', session: req.session});
}
else {
res.send({message: 'Wrong combination Email/Password !'});
}
})
});
app.get('/login', (req, res) => {
console.log(req.session.user);
if (req.session.user){
res.send({
session: req.session,
message: 'logged'
});
}
else {
res.send({
message: 'Not logged'
});
}
});
app.js (login page)
Axios.defaults.withCredentials = true;
const onSubmit = () => {
Axios.post('http://localhost:9001/login', {
mail,
pass,
}).then((response) => {
console.log(response.data.message);
if (response.data.message === 'success') {
history.push('/home');
}
else {
setMessage(response.data.message);
}
});
};
home.js
export default function Home() {
const [user, setUser] = useState('');
const history = useHistory();
useEffect(() => {
Axios.get('http://localhost:9001/login', {withCredentials: true}).then((response) => {
console.log(response.data.message);
if (response.data.message === 'logged'){
setUser(response.data.session.user[0].mail);
}
else {
history.push('/');
}
})
//eslint-disable-next-line
}, []);
return (
<div>
<p>{user}</p>
</div>
)
}
I hope someone is able to suggest some fix to this. I know I can use localStorage but I want to use the session instead.