Web Socket /api/socket

So after searching at the forums of traccar, i realized that,
if someone wants to use web sockets. The only way is to through a
pop up for signing in traccar.
https://github.com/traccar/traccar/issues/2547

Creating or getting a session is not enough for handshake.
Am i right? If i call the /session from another web app to the /api. Then Handshake for web sockets cannot be done. Although the session return the user.
With this example :
https://github.com/traccar/traccar/issues/2547
a pop up is showing in my web page. to make a login. but again the hand shake not workign.

It works for the official web app, so clearly it's possible.

Ok! Thank you very much. Traccar is awesome

Some sample python code that works for me and showing it working.

    signal.signal(signal.SIGINT, signal_handler)

    session = requests.Session()

#    payload = {'email': email, 'password': password}
    payload = {'email': l_uid, 'password': l_pwd}
    params = urlencode(payload, quote_via=quote_plus)

    # params = urllib.urlencode({'email': email, 'password': password})

    headers = {'content-type': 'application/x-www-form-urlencoded',
               'accept': 'application/json'}
    # response = session.post('http://' + url + '/api/session',
    #                         data=params,
    #                         headers=headers)
    response = session.post('http://' + l_url +':' + l_port + '/api/session',
                            data=params,
                            headers=headers)
    print('after connect')
    cookies = session.cookies.get_dict()
    token= cookies['JSESSIONID']

    if response.status_code == 200:
            print("Authentication successfull, Token: " + token)
    else:
            print("Authentication failed, Status:" + response.status_code)
            sys.exit()