I need to know if my user is connected or not. For that I want to read the cookies that I set in the server side with express-session :
app.use(session({
secret: 'crypted key',
resave: false,
saveUninitialized: true,
cookie: { secure: false } // Put true if https
}))
app.post('/connect_user', (req, res) => {
req.session.cookie.username = req.body.username
findUserData('username', req.body.username, req, (userData) => {
req.session.cookie.id = userData.id
req.session.cookie.username = userData.username
res.redirect('/profil')
})
})
I tried to use react-cookie but it doesn't work even though I copy-pasted the npm react-cookie docs example:
import React from 'react';
import Landing from './Landing';
import Home from './Home';
import Profil from './Profil';
import { BrowserRouter as Router, Route } from 'react-router-dom';
import { instanceOf } from 'prop-types';
import { Cookies } from 'react-cookie';
class App extends React.Component {
static propTypes = {
cookies: instanceOf(Cookies).isRequired
};
constructor(props) {
super(props);
const { cookies } = props;
this.state = {
username: cookies.get('username')
};
}
render() {
console.log(this.state.name)
let homePage = (!this.state.username) ? <Landing/> : <Home/>
return (
<Router>
<div>
<Route exact path='/' component={homePage}></Route>
<Route path='/profil' component={Profil}></Route>
</div>
</Router>
)
}
}
export default App;
It's weird because document.cookie renders the correct result, but I don't know how handle it:
PHPSESSID=0nv9ic8h7pv2b63lu4v7eg3mop; user_id=21; username=Ugo; SL_G_WPT_TO=fr; SL_GWPT_Show_Hide_tmp=undefined; SL_wptGlobTipTmp=undefined
You can use js-cookie package and can install it using npm install js-cookie --save command.
import React from 'react';
import Cookies from 'js-cookie';
class App extends React.Component {
this.state = {
username: Cookies.get('username')
}
// more code....
}
Documentation : https://github.com/js-cookie/js-cookie
If all you want is to get the cookie value by key, I would suggest using plain javascript without any dependencies.
In this example, it gets the cookie value by the key "username" with the help of Regex.
let cookieValue = document.cookie.replace(/(?:(?:^|.*;\s*)username\s*\=\s*([^;]*).*$)|^.*$/, "$1");
I'd recommend using universal-cookie as its simpler to use. Mind you, cookies have nothing to do with React. They are stored on the browser and you could use the browser's default API to get cookies.
Here is an example how you can use universal-cookies
import React from 'react';
// other imports...
import Cookies from 'universal-cookie';
const cookies = new Cookies();
class App extends React.Component {
this.state = {
username: cookies.get('username')
}
// more code....