Sauna: Add update timestamp to sauna api

main.go

@@ -6,13 +6,16 @@ import (
 	"log"
 	"net/http"
 	"sync"
+	"time"
 
 	mqtt "github.com/eclipse/paho.mqtt.golang"
 )
 
 type temperature struct {
-	Value float64 `json:"value"`
-	Unit  string  `json:"unit"`
+	Value float64   `json:"value"`
+	Unit  string    `json:"unit"`
+	Time  time.Time `json:"time"`
+	Valid bool      `json:"valid"`
 }
 
 var (
@@ -33,11 +36,15 @@ var saunaHandler mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message
 	log.Printf("Received message: %s from topic: %s\n", msg.Payload(), msg.Topic())
 	sauna_mutex.Lock()
 	err := json.Unmarshal(msg.Payload(), &sauna_temperature)
-	sauna_mutex.Unlock()
+	sauna_temperature.Time = time.Now()
 	if err != nil {
+		sauna_temperature.Valid = false
+		sauna_mutex.Unlock()
 		logger.Print(err)
 		return
 	}
+	sauna_temperature.Valid = true
+	sauna_mutex.Unlock()
 }
 
 var connectHandler mqtt.OnConnectHandler = func(client mqtt.Client) {
@@ -99,7 +106,7 @@ func main() {
 	// Serve files from static folder
 	http.Handle("/", http.FileServer(http.Dir(webui_path)))
 
-	http.HandleFunc("/sauna/sample", http_endpoint_sauna)
+	http.HandleFunc("/api/sauna", http_endpoint_sauna)
 
 	port := ":5000"
 	logger.Println("Server is running on port" + port)