Hi, the above link doesnt work. I have a problem with this line: curl -X POST "https://iam.viessmann.com/idp/v2/token" -H "Content-Type: application/x-www-form-urlencoded" -d "grant_type=authorization_code&client_id=xxxxxxxxxxxxxxxxxxx&redirect_uri=http://192.168.1.199:8123&code_verifier=yyyyyyyyyyyyyyyyyyyyyyyy&code=zzzzzzzzzzzzzzzzzzz" the code i've got already. It was not easy because the redirect_uri redirects immediatellay to an other site and i had to be very fast with the screeenshot :)...finally i've got it, but I get with the above curl a response: {"error":"invalid-token-request"} why? what is wrong? and why it is so complicated: request via url, curl, tokens, client_id, code_verifier, codes, logins? It is an access for my-all-live-savings in a super secure bank? why the client_id is not enough? regards Andrzej
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