To give a little context, this about research using Home assistant and Google Assistant integration without exposing the service to the internet, relying only on local fulfillment. I know the fulfillment URL defined in an action need to be publicly accessible and secure for the Google Assistant to transfer the intent. But in the case of a local fulfillment, and if we don't want any cloud fallback option, why couldn't we configure a local unsecure webhook ?
The workflow would be :
- Send an action request via Google Assistant (from phone app) to the cloud
- Google cloud send the action to the local connected google home equipment
- That action is handled by a local fulfillment script run on the Google home device so that it can now send the intent on the local network using the local IP of the device (home assistant)
- The local device can still communicate back to google cloud (device not exposed but still connected to the internet)
I still don't know why we don't have that option available. Maybe I don't understand the Google Assistant stack well, so I need some enlightenment.
