MQTT - Trigger Configuration (Magic xpi 4.5)
The MQTT connector can be used to subscribe to topics that invoke a flow based on a published message. When you drag the MQTT connector into the Magic xpi Studio’s trigger area, the Properties pane opens. Double-click or right-click on the connector and select Configuration from the context menu to open the MQTT Trigger Configuration dialog box.
This dialog box contains the following fields:
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Connection
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Resource Name
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This read-only field displays the name of the MQTT resource that you selected for the trigger when defining the service.
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Topic
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Click New to add a new topic. Click Delete to add a delete an existing topic.
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Topic
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Enter the name of the topic that you want to subscribe to. Topics support wildcards as per the MQTT specifications.
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QoS
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The Quality of Service definition of the topic that you want to subscribe to. Select one of the following from the drop-down list:
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Result Options
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Message Payload
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Defines where you want to store the message payload. Click  to open the Variables List and select a variable to hold the message payload. The default is C.UserBLOB.
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Message Topic
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Defines where you want to store the message topic. Click to open the Variables List and select a variable to hold the message topic. The default is C.UserString.
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