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UDMI / Docs / Messages / Envelope

UDMI Envelope

Schema Definition: config.json

The UDMI envelope is not a message itself, but the attributes and other information that is delivered along with a message. There is no direct awareness of it at the device level: it is added and manipulated in the back-end only. Primarily based on the message attributes.

From the device side, the subFolder property of the MQTT topic is passed along to the message envelope, which allows the back-end to properly categorize and process data. A device does not need to do anything other than specify the correct subFolder postfix of the MQTT topic.