The flow returns an authorisation token (consisting of 1740 characters) to the miniserver (via Loxberry MQTT to a Virtual Text Input). To my great surprise, this very large text token actually works in a Status Block plugged into a Virtual Output command. The HTTP reply for the Virtual Output is saved to the /user/common directory in the Miniserver. This local file is then polled for the desired values.
I could probably struggle to get more of the flow done in Node-Red (it seems similar to other authorisation processes such as Miele appliances). But the majority of the process can be executed within Loxone.
thank you very much for all the information.
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