MQTT Werkend gekregen

mqtt/db_connect.py

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+import mysql.connector
+from mysql.connector import Error
+
+def database_connect():
+    try:
+        connection = mysql.connector.connect(
+            host="localhost",
+            user="root",
+            password="",
+            database="goodgarden"
+        )
+        if connection.is_connected():
+            return connection
+    except Error as e:
+        print(f"Connection NIET gelukt! ${e}")
+    return None

mqtt/publisher.py

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+import requests
+import time
+import paho.mqtt.client as mqtt
+from db_connect import database_connect
+
+mqtt_broker = "localhost"
+mqtt_port = 1883
+publish_interval = 300 # Secondes om een aanvraag te doen
+
+api_endpoints = [
+    {"url": "https://garden.inajar.nl/api/devices/", "topic": "goodgarden/devices"},
+    {"url": "https://garden.inajar.nl/api/relative_humidity_events/", "topic": "goodgarden/relative_humidity"},
+    {"url": "https://garden.inajar.nl/api/battery_voltage_events/", "topic": "goodgarden/battery_voltage"},
+    {"url": "https://garden.inajar.nl/api/soil_electric_conductivity_events/", "topic": "goodgarden/soil_electric_conductivity"},
+    {"url": "https://garden.inajar.nl/api/soil_relative_permittivity_events/", "topic": "goodgarden/soil_electric_permittivity"},
+    {"url": "https://garden.inajar.nl/api/soil_temperature_events/", "topic": "goodgarden/soil_temperature"},
+    {"url": "https://garden.inajar.nl/api/par_events/", "topic": "goodgarden/par_events"}
+]
+
+client = mqtt.Client()
+client.connect(mqtt_broker, mqtt_port, 60)
+client.loop_start()
+
+def publish_to_mqtt(topic, data):
+    """
+    Publiceer de opgehaalde data naar een MQTT-topic.
+    """
+    client.publish(topic, str(data))
+    print(f"Data published to MQTT topic {topic}.")
+
+def fetch_and_publish_data():
+    """
+    Haal data op van alle endpoints en publiceer naar MQTT.
+    """
+    for endpoint in api_endpoints:
+        url = endpoint["url"]
+        mqtt_topic = endpoint["topic"]
+        access_token = "33bb3b42452306c58ecedc3c86cfae28ba22329c"
+        try:
+            headers = {
+                "Authorization": f"Token {access_token}"
+            }
+            response = requests.get(url, headers=headers)
+            response.raise_for_status()
+            data = response.json()
+            print(f"Data from {url}:")
+            print(data)
+            # Publiceer naar MQTT voordat de data wordt geladen in de database
+            publish_to_mqtt(mqtt_topic, data)
+            # Hier kan je de data laden naar je database
+            load_data(data)
+        except requests.exceptions.RequestException as e:
+            print(f"Error fetching data from {url}: {e}")
+
+def load_data(data):
+    """
+    Implementeer de database logica hier.
+    Deze functie moet mogelijk worden aangepast om te werken met verschillende datastructuren van verschillende endpoints.
+    """
+    print("Data processing and loading logic goes here.")
+
+if __name__ == "__main__":
+    while True:
+        fetch_and_publish_data()
+        print("Waiting for the next retrieval action...")
+        time.sleep(publish_interval)
+
+client.loop_stop()

mqtt/subscribe.py

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+import paho.mqtt.client as mqtt
+
+mqtt_broker = "localhost"
+mqtt_port = 1883
+
+# Lijst waarop je je wil subscriben
+mqtt_topics = ["goodgarden/devices", "goodgarden/relative_humidity"]
+
+# Callback functie voor wanneer de client verbindt met de broker
+def on_connect(client, userdata, flags, rc):
+    print("Connected with result code " + str(rc))
+    # Abonneer op alle topics in de mqtt_topics lijst
+    for topic in mqtt_topics:
+        client.subscribe(topic)
+        print(f"Subscribed to {topic}")
+
+# Callback functie voor wanneer een bericht is ontvangen van de server
+def on_message(client, userdata, msg):
+    # Decodeer de payload van bytes naar string
+    message = msg.payload.decode()
+    print(f"Message received on topic {msg.topic}: {message}")
+    # Hier kun je code toevoegen om iets te doen met het ontvangen bericht
+    # Bijvoorbeeld: de data opslaan, een actie uitvoeren, etc.
+
+# Maak de MQTT Client aan
+client = mqtt.Client()
+client.on_connect = on_connect
+client.on_message = on_message
+
+# Verbind met de broker
+client.connect(mqtt_broker, mqtt_port, 60)
+
+# Start loop
+client.loop_forever()