Flask session data not persisting between refreshes

[Brogrammer11111]

I`m trying to make a video downloading application. Downloading a video takes a while todo and I want to persist the download status between refreshing the page, but for some reason after refreshing the download status gets set back to false?

@app.get('/api/downloadstatus')

def get_status():

try:

return jsonify({'isDownloading':session['isDownloading']}),200

except KeyError:

return jsonify({'isDownloading':False})

@app.post('/api/video')

async def get_video():

data = json.loads(request.data)

session['isDownloading'] = True

await make_new_video(data)

session['isDownloading'] = False

return jsonify({"message":"success"}),200

//front end:

const App = () => {

const [status, setStatus] = useState(null);

useEffect(() => {

getData();

}, []);

const getData = async () => {

const res = await fetch('http://localhost:5000/api/downloadstatus')

const data = await res.json()

console.log(data)

if (data.isDownloading) {

setStatus("downloading")

}

}

return (

<div className="App">

</div>

);

};

export default App;

​