platypush/platypush/plugins/mqtt.py
2018-07-06 02:37:47 +02:00

44 lines
1.1 KiB
Python

import json
import paho.mqtt.publish as publisher
from platypush.message import Message
from platypush.plugins import Plugin, action
class MqttPlugin(Plugin):
"""
This plugin allows you to send custom message to a message queue compatible
with the MQTT protocol, see http://mqtt.org/
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
@action
def send_message(self, topic, msg, host, port=1883, *args, **kwargs):
"""
Sends a message to a topic/channel.
:param topic: Topic/channel where the message will be delivered
:type topic: str
:param msg: Message to be sent. It can be a list, a dict, or a Message object
:param host: MQTT broker hostname/IP
:type host: str
:param port: MQTT broker port (default: 1883)
:type port: int
"""
try: msg = json.dumps(msg)
except: pass
try: msg = Message.build(json.loads(msg))
except: pass
publisher.single(topic, str(msg), hostname=host, port=port)
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