diff --git a/python/flask_testPython38.py b/python/flask_testPython38.py
new file mode 100644
index 0000000..a699c57
--- /dev/null
+++ b/python/flask_testPython38.py
@@ -0,0 +1,118 @@
+from __future__ import print_function
+
+
+from datetime import timedelta, datetime
+
+import requests
+from flask import Blueprint, request, jsonify, json
+import base64
+from .models import HaraCustomers, \
+    HaraShop
+now = datetime.utcnow() + timedelta(hours=7)
+payments = Blueprint('payments', __name__)
+import hashlib
+import hmac
+import json
+import uuid
+def momo_payment(amount):
+    # parameters send to MoMo get get payUrl
+    endpoint = "https://test-payment.momo.vn/v2/gateway/api/create"
+    partnerCode = "your_partnderCode"
+    accessKey = "your_accessKey"
+    secretKey = "your_secretKey"
+    orderInfo = "pay with MoMo"
+    redirectUrl = "https://yourwebsite.com/api/v2/momo/payment/return"
+    ipnUrl = "https://yourwebsite.com/api/v2/momo/payment/notify"
+    #amount = "50000"
+    orderId = str(uuid.uuid4())
+    requestId = str(uuid.uuid4())
+    requestType = "captureWallet"
+    extraData = ""  # pass empty value or Encode base64 JsonString
+    # before sign HMAC SHA256 with format: accessKey=$accessKey&amount=$amount&extraData=$extraData&ipnUrl=$ipnUrl&orderId=$orderId&orderInfo=$orderInfo&partnerCode=$partnerCode&redirectUrl=$redirectUrl&requestId=$requestId&requestType=$requestType
+    rawSignature = "accessKey=" + accessKey + "&amount=" + amount + "&extraData=" + extraData + "&ipnUrl=" + ipnUrl + "&orderId=" + orderId + "&orderInfo=" + orderInfo + "&partnerCode=" + partnerCode + "&redirectUrl=" + redirectUrl + "&requestId=" + requestId + "&requestType=" + requestType
+    print(rawSignature, type (rawSignature))
+    # puts raw signature
+    #digest = hmac.new(secretKey.encode('utf-8'), rawSignature, hashlib.sha256).digest()
+    key_bytes = bytes(secretKey, 'utf-8')
+    # encoding as per other answers
+    byte_key = bytes(secretKey, 'UTF-8')  # key.encode() would also work in this case
+    message = rawSignature.encode()
+
+    # now use the hmac.new function and the hexdigest method
+    h = hmac.new(byte_key, message, hashlib.sha256)
+    signature = h.hexdigest()
+    data = {
+        'partnerCode': partnerCode,
+        'partnerName': "Test",
+        'storeId': "MomoTestStore",
+        'requestId': requestId,
+        'amount': amount,
+        'orderId': orderId,
+        'orderInfo': orderInfo,
+        'redirectUrl': redirectUrl,
+        'ipnUrl': ipnUrl,
+        'lang': "vi",
+        'extraData': extraData,
+        'requestType': requestType,
+        'signature': signature
+    }
+    #data = json.dumps(data)
+    clen = len(data)
+    headers ={'Content-Type': 'application/json; charset=UTF-8', 'Content-Length': str(clen)}
+    response = requests.post(endpoint, headers=headers, json=data)
+    print(response.json())
+    return response
+@payments.route('/api/v2/momo/payment/return', methods=['GET', 'POST'])
+def payment_momo_return():
+    print(request.data)
+    return 200
+@payments.route('/api/v2/momo/payment/notify', methods=['GET', 'POST'])
+def payment_momo_notify():
+    print(request.data)
+    return 200
+@payments.route('/api/v2/momo/payment', methods=['POST'])
+def payment_momo_post():
+    print(request.data)
+    data = request.data
+    headers = request.headers
+    try:
+        request_json = json.loads(request.json)
+        print(request_json)
+    except Exception as e:
+        print(e)
+        request_json = data.decode('utf8').replace("'", '"')
+        print(request_json)
+        request_json = json.loads(request_json)
+    Authorization = headers['Authorization']
+    token = Authorization.replace("Bearer", "")
+    phone = request_json['phone']
+    if phone is not None and phone != "":
+        print('token', token, "phone", phone)
+        now = datetime.utcnow() + timedelta(hours=7)
+        shop = HaraShop.query.filter(HaraShop.private_token == token, HaraShop.ended_date > now,
+                                     HaraShop.shop_active == True).first()
+        customer = HaraCustomers.query.filter_by(shop_id=shop.id, phone=phone).first()
+        if customer is not None:
+            amount = request_json['amount']
+            response = momo_payment(str(amount))
+            print(response.url)
+            print(response.json())
+            response_json = {
+                "status": True,
+                "have_customer": True,
+                "response":response.json(),
+                "url":response.url,
+            }
+            return jsonify(response_json)
+        else:
+            response_json = {
+                "status": False,
+                "have_customer": False
+            }
+            return jsonify(response_json)
+    else:
+        response_json = {
+            "have_customer": False,
+            "status": False,
+        }
+        return jsonify(response_json)