publishJSONtoMQTT function

[MagnusLii]

MQTT publish function

Goal

The objective is to develop a robust function capable of accepting a JSON object, an integer representing the Quality of Service (QoS) level, and a topic name. The function tries to publish the JSON message as to the specified topic. The function should not modify the input arguments in any way.

Arguments

• Topic to publish: A string representing the MQTT topic to which the message will be published.
• JSON object (message): The JSON object that needs to be published as a message.
• QoS level: An integer specifying the Quality of Service level to be used during publishing.

  Returns

  Boolean: True if the message is successfully published; False if any issues occur during the publishing process.

  Name of function

  publishJSONtoMQTT

[MagnusLii]

def publishJSONtoMQTT(topic, message):
    try:
        mqtt.publish(topic, message, qos=mqttQoSLevel)
    except:
        print(f'Failed to publish to topic: {topic}')
        return False
    else:
        return True