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MQTT-Sender

Table of Contents

    MQTT Sender

    MQTT Sender can be used to publish messages to a topic on a MQTT broker

    In the table below, you will find an explanation about these properties. All attributes with a ‘*’ are mandatory.

    Attribute

    Description

    Name*

    Id of the component

    Enabled

    Check this box if you want this consumer to be enabled.

    URL*

    URL to connect to the broker. The chosen URL determines whether the connection should be encrypted or not. The consumer will use the default ConnectPlaza truststore. The URL must have the following format: protocol://hostname:port, where protocol should be either ssl or tcp

    Client ID

    A unique client id to connect to the broker. Default: "interfacename.flowname.componentname.clientid"

    Username

    Client username to connect to the broker

    Password

    Client password to connect to the broker

    Topic

    The topic to publish to.

    If no topic is mentioned, the messages will be send to the topic specified in the mqtt_topic property of the connect message. This means that the topic attribute is not required. You can send topics with one  producer to varying topics by setting the mqtt_topic property with a header enricher.

    Quality of Service

    A comma delimited list of QoS values. Can be a single value that is applied to all topics, or a value for each topic (in which case the lists must the same length). Default: 0

    MessagePart

    Name of the MessagePart in a ConnectMessage where the content of the message is being stored

    Timeout

    Time-out in miliseconds. It only applies if the channel might block

    Keystore

    Name of the keystore file to use for client authentication. If the keystore file is not on the classpath the name should be preceded by file:. Default: no keystore will be used.

    Keystore Password

    Password of the keystore for client authentication

    Clean Session

    Sets whether the client and server should remember state across restarts and reconnects

    Keep Alive Interval

    The keep alive interval specifies the maximum amount of time in seconds that broker and client can be connected without sending a message

    Async

    When true, the caller will not block waiting for delivery confirmation when a message is sent. Default:false

    Retained

    When true, the broker will store the last retained message on a topic so that new subscribers receive the last message immediately after subscribing. Default:false

    Persistence

    Path to the directory to use for persistence. Default: no persistence

    Description

    Description of the specific consumer. This is for documentation purposes

    Enable SSL

    When you enable SSL, you need to add some extra information. This will look like this:

    Attribute

    Description

    Certificate Alias in Keystore

    Set the certificate alias for the selected certificate. Should exist in defined keystore.

    Key Password

    Password for the certificate key.

    Keystore Location

    The location of the keystore. Should be a path to the keystore JKS file.

    Keystore Password

    Password of the keystore.

     


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