ReadonlycleanClean start / clean session
ReadonlyclientClient identifier
ReadonlykeepKeep alive interval (seconds)
Optional ReadonlypasswordPassword (optional)
Optional ReadonlypropertiesCONNECT properties (5.0)
ReadonlyprotocolProtocol version
ReadonlytypePacket type discriminator.
Optional ReadonlyusernameUsername (optional)
Optional ReadonlywillWill message (optional)
CONNECT packet - Client requests connection to server.
See
MQTT 5.0 §3.1