<script type="text/javascript">
  $(document).ready(function() {
    $('input[type=radio]').on('change', function() {
        $(this).closest("form").submit();
        var poll_id = $(this).closest("div").attr("id");
        var data = {poll_id};
        console.log(JSON.stringify(data));
        $.ajax({
            url: '/poll',
            type: 'POST',
            data: JSON.stringify(data),
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
          }, function(data) {
              console.log(data);
            });
      });
});
</script>

######### my route

@app.route('/poll', methods=['GET', 'POST'])
def poll():
    polltodb = pollingresult(request.form['points'])
    session['points_session'] = request.form['points']
    db.session.add(polltodb)
    db.session.commit()
    data = request.get_json(force=True)