In edgeX demonstration API Walk Through documentation in paragraph “Defining your Data” shows how to create the addressable that have the information about the physical device(section 5.4.2). I m not sure what is the purpose of the fields : “publisher”, “user”, “password”, topic". Is it something optional? i saw that these fields are not mentioned to the next steps (register, provisioning, client registration etc) . Can we use that fields to create some kind of tenants ?
Those are used if you’re addressing an MQTT broker or something that required authentication, but otherwise they can be left empty