Mqtt: use - to remove vehicle (#11192)

evcc-io · Dec 22, 2023 · e0d77dc · e0d77dc
1 parent 7f9d997
commit e0d77dc
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/provider/mqtt/client.go b/provider/mqtt/client.go
@@ -129,7 +129,7 @@ func (m *Client) Publish(topic string, retained bool, payload interface{}) error
 	return nil
 }
 
-// Listen validates uniqueness and registers and attaches listener
+// Listen attaches listener to slice of listeners for given topic
 func (m *Client) Listen(topic string, callback func(string)) error {
 	m.mux.Lock()
 	m.listener[topic] = append(m.listener[topic], callback)

diff --git a/server/mqtt.go b/server/mqtt.go
@@ -287,7 +287,8 @@ func (m *MQTT) listenLoadpointSetters(topic string, site site.API, lp loadpoint.
 	}
 	if err == nil {
 		err = m.Handler.ListenSetter(topic+"/vehicle", func(payload string) error {
-			if payload == "" {
+			// https://github.com/evcc-io/evcc/issues/11184 empty payload is swallowed by listener
+			if payload == "-" {
 				lp.SetVehicle(nil)
 				return nil
 			}