Change topic structure

The new structure for the contact states is the following.

    <prefix>/contact/<id>/state

The reasoning is:

- `<prefix>` allows using multiple (Sia) services on the same broker
- `contact` as device type indicates contact-specific semantics
- `<id>` makes different contacts distinguishable
- `state` is the actual payload

1 files changed, 1 insertions, 1 deletions

diff --git a/main.go b/main.go
index eadcabb..075feb8 100644
--- a/main.go
+++ b/main.go
@@ -42,7 +42,7 @@ func main() {
 				log.Fatalf("Failed to get value: %v", err)
 			}
 
-			topic := fmt.Sprintf("%s/%s", TOPIC_PREFIX, device.Address)
+			topic := fmt.Sprintf("%s/contact/%s/state", TOPIC_PREFIX, device.Address)
 			payload := []byte(fmt.Sprintf("%t", state))
 			client.Publish(topic, QOS, RETAINED, payload)
 		}