In my android smartphone… go in Google Home > Setting > Home control > Add device and click in [test] my test app … it show me a blank page with the following message:
{“message”: “missing project_id in redirect_uri”}
Can anyone help me?
I have Home Assistant Hassio 0.79.3
I created a ddns with Duckdns and NGINX… which works fine
Problem myself solved
Google Assistant component instruction are incomplete…
After created settings in Action on Google you have to click on BUILD > Actions… then Home Assistant and put the following url: https://[YOUR HOME ASSISTANT URL:PORT]/api/google_assistant
Then go to Google Home in your smartphone > Settings > Home Control > Add (+)
You wll find a new item [test] Service Name
The “Service name” is the name you gved it in Quick Setup or Invocation section of Action on Google.