function save_bucket() {

    let bucket = $('#bucket').val()

    $.ajax({
        type: "POST",
        url: "/bucket",
        data: {bucket_give: bucket},
        success: function (response) {
            alert(response["msg"])
            window.location.reload()
        }
    });
}



@app.route("/bucket", methods=["POST"])
def bucket_post():
    bucket_receive = request.form['bucket_give']

    bucket_list = list(db.bucket.find({}, {'_id': False}))
    count = len(bucket_list) + 1

    doc = {
        'num' : count,
        'bucket': bucket_receive,
        'done':0
     }


    db.bucket.insert_onr(doc)




    return jsonify({'msg': '등록완료!'}

글 등록이 안되고 오류가 떠요