MQTT action

The action is used for publish output message into a MQTT server.

Property name Optional Description
server false The broker address of the mqtt server, such as tcp://127.0.0.1:1883
topic false The mqtt topic, such as analysis/result
clientId true The client id for mqtt connection. If not specified, an uuid will be used
protocolVersion true 3.1 (also refer as MQTT 3) or 3.1.1 (also refer as MQTT 4). If not specified, the default value is 3.1.
qos true The QoS for message delivery. Only int type value 0 or 1 or 2.
username true The user name for the connection.
password true The password for the connection.
certificationPath true The certification path. It can be an absolute path, or a relative path. If it is an relative path, then the base path is where you excuting the server command. For example, if you run bin/server from /var/kuiper, then the base path is /var/kuiper; If you run ./server from /var/kuiper/bin, then the base path is /var/kuiper/bin.
privateKeyPath true The private key path. It can be either absolute path, or relative path. For more detailed information, please refer to certificationPath.
insecureSkipVerify true If InsecureSkipVerify is true, TLS accepts any certificate presented by the server and any host name in that certificate. In this mode, TLS is susceptible to man-in-the-middle attacks. The default value is false. The configuration item can only be used with TLS connections.
retained true If retained is true,The broker stores the last retained message and the corresponding QoS for that topic.The default value is false.

Below is sample configuration for connecting to Azure IoT Hub by using SAS authentication.

    {
      "mqtt": {
        "server": "ssl://xyz.azure-devices.net:8883",
        "topic": "devices/demo_001/messages/events/",
        "protocolVersion": "3.1.1",
        "qos": 1,
        "clientId": "demo_001",
        "username": "xyz.azure-devices.net/demo_001/?api-version=2018-06-30",
        "password": "SharedAccessSignature sr=*******************",
        "retained": false
      }
    }

Below is another sample configuration for connecting to AWS IoT by using certification and privte key auth.

    {
      "mqtt": {
        "server": "ssl://xyz-ats.iot.us-east-1.amazonaws.com:8883",
        "topic": "devices/result",
        "qos": 1,
        "clientId": "demo_001",
        "certificationPath": "keys/d3807d9fa5-certificate.pem",
        "privateKeyPath": "keys/d3807d9fa5-private.pem.key", 
        "insecureSkipVerify": false,
        "retained": false
      }
    }
@© Copyright 2016-2019, EMQ Technologies Co., Ltd., powered by GitbookThe document reversion time: 2020-08-19 07:00:19

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