Flow for Italian retepa - lepida, sensor DATA

Hi, I'm a new Italian user and I'm trying my first experiences with node-red!

the flow: https://flows.nodered.org/flow/4ebc73fb1453a044d0e4498041991e26

This flow allows you to query the lepida server and return the payload of a sensor. In addition to interrogation, the sensors can also be controlled (only class "C" sensors) by providing a suitable payload. The methods made available by the resource are two: GET and PUT, respectively to query the sensors or to send a command. API access manual (PULL and PUSH) for Lepida ScpA IoT services: https://www.retepaiot.it/pdf/retepaiot_api.pdf