from dm_aiomqtt import DMAioMqttClient
import asyncio
# create handler for 'test' topic
async def test_topic_handler(publish: DMAioMqttClient.publish, topic: str, payload: str) -> None:
print(f"Received message from {topic}: {payload}")
publish("test/success", payload=True)
async def main():
# create client
mqtt_client = DMAioMqttClient("localhost", 1883, "username", "password")
# add handler for 'test' topic
mqtt_client.add_topic_handler("test", test_topic_handler)
# start connection
await mqtt_client.start()
# publish
mqtt_client.publish("test", payload="Hello World!", sent_logging=True)
# other code (for example, endless waiting)
await asyncio.Event().wait()
if __name__ == "__main__":
asyncio.run(main())You can also start with a block thread
await mqtt_client.start_forever()-
NOT required client certificate
mqtt_client = DMAioMqttClient( host="localhost", port=8883, ca_crt="ssl/ca.crt" )
-
REQUIRED client certificate
mqtt_client = DMAioMqttClient( host="localhost", port=8883, ca_crt="ssl/ca.crt", client_crt="ssl/client.crt", client_key="ssl/client.key" )
Set this parameter resend_not_success_messages=True when create mqtt client
mqtt_client = DMAioMqttClient(
host="localhost",
port=1883,
resend_not_success_messages=True
)Now, in case of loss of connection, all messages that were sent during this period will be re-sent as soon as the connection appears again.
If you want set up custom logger parameters
from dm_aiomqtt import DMAioMqttClient
from dm_logger import FormatterConfig
# set up custom logger for all clients
DMAioMqttClient.set_logger_params(
{
"name": "my_name",
"formatter_config": FormatterConfig(
show_datetime=False,
)
}
)See more about DMLogger here
| Parameter | Type | Default Value | Description |
|---|---|---|---|
topic |
str |
(required) | Topic name |
payload |
str |
"DEBUG" |
Content to send |
qos |
0 | 1 | 2
|
True |
MQTT QoS |
payload_to_json |
bool | "auto"
|
True |
Whether to convert content to JSON |
sent_logging |
bool |
False |
Whether to print the sending notification |
error_logging |
bool |
False |
Whether to print a send error warning |
If you run async code in Windows, set correct selector
import asyncio
import sys
if sys.platform == "win32":
asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())