messageExpiry
A user-defined integer value that will persist a message at the message broker for a specified amount of time to ensure that the message will expire if it's no longer relevant to the subscriber. The value of messageExpiry
represents the number of seconds before it expires. For more information about the limits of messageExpiry
, see Amazon Web Services IoT Core message broker and protocol limits and quotas from the Amazon Web Services Reference Guide.
Supports substitution templates.