HTTP binding use bearer token

I want to use the http binding to do some post requests, but I need a bearer token, which I get from another post request.
How can I use the bearer token in a http thing which I grabbed in another thing?
I was already thinking to grab the bearer token in the http thing, and use a linked item in a rule to execute my post command via sendHttpPostRequest. But if everything can be done via the http binding would be great

Did you find a solution to that?
The Fronius SmartMeter IP, which I was accessing via Basic authentication seems to have changed the API in the last update to require a JWT, so I assume I need to somehow handover the token.

For the Fronius SmartMeter IP integration I have made use of the WebUI to set the Thing up and the Items.
I can click under Authentication to use Token/Bearer Authentication (and provide username and password) but I still just see

Requesting ‘http://192.168.0.231/wizard/public/api/measurements’ (method=‘GET’, content=‘null’) failed: 400 Bad Request

Would be happy if anyone has an idea how to resolve this issue.
Thanks

I meanwhile managed to “find” a JWT in the browser session I can open to the SmartMeter, but providing such a token as the password, seems to have no effect. I removed the username .. no change.
Does anyone make use of accessing a http/JSON end which requires a JWT (token)?