Hi all,
I am trying to use the Signal integration (with HA 2021.1.3) to send notifications to my mobile.
I followed the instructions as documented on https://www.home-assistant.io/integrations/signal_messenger/ and sending messages via curl works perfectly.
However, if I try to send messages using the Developer Tools I get an error saying: “Failed to call service notify/signal. Couldn’t determine REST API version”
Appreciate any help.
Thanks!
I had the same error message. For me the reason was, that the homeassistant instance running in the hassio docker container setup could not reach the Signal Messenger REST API which I did set up manually in another docker container.
So when testing the curl you might attach to the hassio container and curl from there with the host:port config you use in the notify service configuration.
Thanks mawir.
I double checked the notify config and realised I missed the protocol, i.e. http://.
