Qubitro offers a customized Username and Password authentication. Any MQTT client library that supports username-password authentication can be used to connect Qubitro.
Device ID and Device Token are both unique, generated automatically, and located under the device settings tab in Qubitro Portal.
The client identifier (Client ID) identifies each MQTT client that connects to an MQTT broker.
The MQTT specification describes three Quality of Service (QoS) levels
Delivered at most once
Delivered at least once
Delivered exactly once
Qubitro has support for all QoS options but the default options always 0 unless specified during the connection.