i would like to achieve the follwing:
Connect to the Victron VRM API (Link) with username and password and then read e.g. the Battery State in % (Link)
At the end i would like to use this battery state in a homey variable.
Can someone assist a non programmer ?
You don’t want to use the Victron app?
the victron VRM App only shows PV values and the Victron App needs connect to a cerbo GX via IP, which i dont have 
But shure i could ask in the VRM APP channel to add additional Values. Good idea!
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I managed it myself 
with postman i gathered my bearer token from the VRM Portal.
Then i used Logik Http Get with the token in the header and with better logic i formatted the json into a variable
Update: as the token does not last forever, added a step to receive a new token
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