MQTT message delivery quality of service.

Enum values match MQTT5 spec encoding values.

Enumeration Members

Enumeration Members

AtLeastOnce: 1

A level of service that ensures that the message arrives at the receiver at least once.

AtMostOnce: 0

The message is delivered according to the capabilities of the underlying network. No response is sent by the receiver and no retry is performed by the sender. The message arrives at the receiver either once or not at all.

ExactlyOnce: 2

A level of service that ensures that the message arrives at the receiver exactly once.

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