Builder

A UTF-8 encoded string that describes the content of the publishing message.

The base64-encoded binary data used by the sender of the request message to identify which request the response message is for when it's received.

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.

An Enum string value that indicates whether the payload is formatted as UTF-8.

A UTF-8 encoded string that's used as the topic name for a response message. The response topic is used to describe the topic which the receiver should publish to as part of the request-response flow. The topic must not contain wildcard characters.

An array of key-value pairs that you define in the MQTT5 header.