made function for db connection

src/Python/flask/web/app.py

@@ -1,16 +1,16 @@
-from flask import Flask, request, render_template, jsonify
+from flask import Flask, request, render_template, jsonify, g
 import paho.mqtt.client as mqtt
 import mysql.connector 
 
 app = Flask(__name__)
 
+# Globale MQTT setup
 kobuki_message = "empty"
 def on_message(client, userdata, message):
     global kobuki_message
     kobuki_message = str(message.payload.decode("utf-8"))
     print(kobuki_message)
 
-# Create an MQTT client instance
 mqtt_client = mqtt.Client()
 mqtt_client.username_pw_set("server", "serverwachtwoordofzo")
 mqtt_client.connect("localhost", 80, 60)
@@ -18,13 +18,24 @@ mqtt_client.loop_start()
 mqtt_client.subscribe("kobuki/data")
 mqtt_client.on_message = on_message
 
-cnx = mysql.connector.connect(
+# Database connectie-functie
+def get_db():
+    if 'db' not in g:  # 'g' is specifiek voor een request en leeft zolang een request duurt
+        g.db = mysql.connector.connect(
             host="127.0.0.1",
             port=3306,
             user="admin",
             password="kobuki",
             database="kobuki"
         )
+    return g.db
+
+# Sluit de database na elke request
+@app.teardown_appcontext
+def close_db(error):
+    db = g.pop('db', None)
+    if db is not None:
+        db.close()
 
 @app.route('/')
 def index():
@@ -42,11 +53,12 @@ def move():
     data = request.get_json()
     direction = data.get("direction")
     
-    cursor = cnx.cursor()
+    # Haal databaseverbinding op
-    cursor.execute("INSERT INTO kobuki_data (command) VALUES (%s)", (direction,))
+    db = get_db()
-    cnx.commit()
+    cursor = db.cursor()
+    cursor.execute("INSERT INTO command VALUES (%s)", (direction,))
+    db.commit()
     cursor.close()
-    cnx.close()
 
     # Verstuur de richting via MQTT
     if direction:
@@ -54,18 +66,13 @@ def move():
 
     return jsonify({"status": "success", "direction": direction})
 
-@app.route('/phpmyadmin/<path:path>')
-def phpmyadmin_passthrough(path):
-    # Laat Apache deze route direct afhandelen
-    return "", 404
-
 @app.route("/database")
 def database():
-    cursor = cnx.cursor()
+    db = get_db()
+    cursor = db.cursor()
     cursor.execute("SELECT * FROM kobuki_data")
     rows = cursor.fetchall()
     cursor.close()
-    cnx.close()
     return str(rows)
 
 if __name__ == '__main__':