internet.py

import time
from paho.mqtt import client as mqtt_client
import pymongo


broker = 'mqttdashboard.com'
port = 1883
topic = "/dni/taller2"
client_id = 'david'

myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["Usal"]
mycol = mydb["Lecturas"]

def connect_mqtt() -> mqtt_client:
    def on_connect(client, userdata, flags, rc):
        if rc == 0:
            print("Conectado a HiveMQ!")
        else:
            print("Failed to connect, return code %d\n", rc)

    client = mqtt_client.Client(client_id)
    client.on_connect = on_connect
    client.connect(broker, port)
    return client
datos = []

def subscribe(client: mqtt_client):
    def on_message(client, userdata, msg):
        print('------------------------------')
        lecturas ={'temperatura' : msg.payload.decode(), "topic" :msg.topic,  "fecha": time.strftime("%b-%d-%Y"), "hora" :time.strftime("%H:%M:%S")}
        print(lecturas)
        print(type(lecturas))
        datos.append(lecturas)
        print(datos)
        print(type(datos))

        x = mycol.insert_many(datos)
        #print lista de los valores id de los documentos insertados:
        print(x.inserted_ids)
    client.subscribe(topic)
    client.on_message = on_message

def run():
    client = connect_mqtt()
    subscribe(client)
    client.loop_forever()

if __name__ == '__main__':
    run()