pymqtt
pymqtt is a mqtt python client library extension meant to facilitate the integration of a MQTT client into your web application. Basically it is a thin wrapper around the paho-mqtt package to simplify MQTT integration in a python application. MQTT is a machine-to-machine (M2M)/āInternet of Thingsā (IoT) protocol which is designed as a lightweight publish/subscribe messaging transport. It comes very handy when trying to connect multiple IoT devices with each other or monitor and control these devices from one or multiple clients.
Installing
Install and update using pip:
$ pip install -U pymqtt
A Simple Example
import logging
from flask import Flask
from pymqtt import Mqtt
logging.basicConfig(format='%(asctime)s %(process)d,%(threadName)s %(filename)s:%(lineno)d [%(levelname)s] %(message)s',
datefmt='%Y-%m-%d %H:%M:%S',
level=logging.INFO)
logger = logging.getLogger(__name__)
app = Flask(__name__)
app.config.setdefault('MQTT_IP', '127.0.0.1')
app.config.setdefault('MQTT_PORT', 1883)
app.config.setdefault('MQTT_USER', 'user')
app.config.setdefault('MQTT_PASSWORD', 'password')
fmqtt = Mqtt()
fmqtt.config_from_obj(app.config)
@app.route('/')
def hello_world():
content = 'hello world'
success = fmqtt.publish('hell world', 'topic', qos=2)
return 'send %s success %s' % (content, success)
@fmqtt.subscribe(topic='topic', qos=2)
def flask_rabmq_test(body):
logger.info(body)
return True
if __name__ == '__main__':
fmqtt.run()
app.run()
