I can not get a message in the console that I am sending

[FishManHell]

Hi Miguel - I have a little question about socket io
Almost no experience with them
There is a back on puthon socket io chat.
conest, I made messages like it also leaves, but it’s not monyatno right or not. And I can't get it to the console.
I will be grateful if you help

socketio = SocketIO(app, cors_allowed_origins="*", logger=True, engineio_logger=True)
class Chatroom(Namespace):
    def connect(self):
        if request.headers.get('Authorization') not in tokenized:
            emit('connection_error', {'error': 'unauthorized'}, broadcast=True)
            disconnect()
            return 401
        else:
            emit('success')

    def disconnect(self):
        pass

    def send(self, data):
        print(data)
        send(data, broadcast=True)


socketio.on_namespace(Chatroom('/chat'))
if __name__ == '__main__':
    socketio.run(app,port=5000, host='127.0.0.1', debug=True)

function socketIoFunc() {

        socket.on('connect', function () {
            if (socket.io.opts.extraHeaders.Authorization) {
                socket.send('User has connected');
                console.log(socket);
            } else {
                socket.emit('connection_error', {'error': 'unauthorized'})
            }
        });

        socket.on('send', function (data) {
            console.log(data)
            console.log('I see')
        })
    }

[miguelgrinberg]

I suggest you start from a working example code, like the one in this repository. You have a few mistakes in your code.

[FishManHell]

The fact is that the back is not mine and I first encountered this language and the backend in general - I would be grateful if you could tell me where to look

[miguelgrinberg]

Okay, so it is not your code, but there are still mistakes in this code. Here is a chat project that you can use to learn Socket.IO: https://github.com/miguelgrinberg/Flask-SocketIO-Chat.

[FishManHell]

Miguel good evening, I solve the problem, I can receive and pull out the message, but there is, well, or this is not a problem - every time I click on send message, the console shows as many times as many elements in the array - Is this normal ? I think not

tell me what could be the reason

python code:

class Chatroom(Namespace):
    def on_connect(self):
        if request.headers.get('Authorization') not in tokenized:
            emit('connection_error', {'error': 'unauthorized'})
            disconnect()
            return 401
        else:
            emit('success')

    def on_disconnect(self):
        print('Client disconnected')
        pass

    def on_message(self, data):
        print(data)
        emit('message', data)


socketio.on_namespace(Chatroom('/chat'))

if __name__ == '__main__':
    socketio.run(app,port=5000, host='127.0.0.1', debug=True)

reactJs code:

[const socket = openSocket.connect(`${urlStr}/chat`, {
    forceNew: true,
    reconnection: true,
    extraHeaders: {Authorization: `Bearer SGFycnk6MTIzNDU2`}
});

const [test, setTest] = useState([])
    const [text, setText] = useState('');

const functionSendMessage = () => {
        const array = [...test]
        socket.on('message', data => {
            if (data.length) {
                array.push(data)
                setText('')
                console.log(array)
            }
        })
        socket.emit('message', text)
        setTest(array)
    }
    
      useEffect(() => {
        socket.once('connect', () => {console.log('connected')})
        return () => {
            socket.disconnect()
        }

    }, [])
    
    return (
    <>
    <input type="text" value={text} onChange={e => setText(e.target.value)}/>
            <button onClick={functionSendMessage}>Send</button>
    </>
    )

[miguelgrinberg]

You are asking me about something your application is doing, and I have no context to answer. Remember that this project is the Python server, nothing to do with the Socket.IO client that you are using or the JavaScript code that you are running on top of it.

[FishManHell]