SEND_IF_NEW_SUBSCRIPTION

Send retained messages only if the subscription does not already exist.

The broker delivers retained messages only on the first subscribe for a topic. Re-subscribing to an already-active topic does not re-trigger delivery.

Properties

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expect val name: String
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expect val ordinal: Int
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val value: Int

The numeric option value (0, 1, or 2) as encoded in the SUBSCRIBE packet.