Generate API KEY Fails

[S_Zander]

I have tried every method on the forum to get an API key. I always get an error after step 2. "{"error": "invalid-token-request"}". I have tried with POSTMAN, with Bash, with PHP Script always the same result. Which leads me to the next, whether it's salesforce, bitbucket, jira or any other software, no software has such a user unfriendly method of generating API keys as Viessmann. One could get the feeling that Viessman doesn't want any intergations. Any Idea to get the Key? I work with this document https://documentation.viessmann.com/static/authentication

Greetz Sam

[CaCicala]

Hi,

I completely understand your frustration, almost everyone here has experienced it. In case you're willing to use Node-Red, I've written several tutorials for the Viessmann API in conjunctiion with NR.

Start with this one here:

https://www.viessmann-community.com/t5/The-Viessmann-API/How-to-avoid-sudden-death-after-180-days-au... 

Kind Regards

Chris

[S_Zander]

I had used a other form of the url in the first step, so i had enough time for the second step and it works

thanks