[SOLVED] Problem authorizing with Home Connect (Bosch cloud api)

Configuration
1

I’m trying to get my Bosch dishwasher to work with HA. I have tried to follow to instructions on Home Connect - Home Assistant to setup a developer application, but my client credential does not seem to be accepted. When I am trying to add the actual “Home Connect” integration in HA, all I get is this response from api.home-connect.com:

{
  "error": "unauthorized_client",
  "error_description": "client or redirection URI not authorized",
  "state": "..."
}

I’ve tried specifying client credentials using both the GUI way and hard-coded in configuration.yaml. I’ve tried creating two different applications. I’m getting kind of stuck now.

Do anyone have any suggestions on how to figure out the problem?

2

Solved. The issue was that the documentation is incorrect, you must specify an externally reachable URL.

I’ve filed a bug on the documentation: https://github.com/home-assistant/home-assistant.io/issues/24017

3

Still can’t get it to work. If I enter the callback as follows, but when I try this manually I get a 404, which means the address can be found but the redirect/oauth portion not. What am I doing wrong. This has to be the worst documented integration…

https://my external address/redirect/oauth