Value indicating the reason that the sender is closing the connection
Optional
sessionRequests a change to the session expiry interval negotiated at connection time as part of the disconnect. Only valid for DISCONNECT packets sent from client to server. It is not valid to attempt to change session expiry from zero to a non-zero value.
Optional
reasonAdditional diagnostic information about the reason that the sender is closing the connection
Optional
userSet of MQTT5 user properties included with the packet.
Optional
serverProperty indicating an alternate server that the client may temporarily or permanently attempt to connect to instead of the configured endpoint. Will only be set if the reason code indicates another server may be used (ServerMoved, UseAnotherServer).
Optional
typeAlways set on packets coming from the client to the user. Ignored if set on packets that come from the user to the client.
The primary use is to allow users to distinguish between packets in polymorphic situations (for example, the result of a publish attempt which might be a Puback (QoS 1) or Pubcomp (QoS 2, when we support it).
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Data model of an MQTT5 DISCONNECT packet.