diff --git a/config.json.templ b/config.json.templ
index 3833e78..6abee90 100644
--- a/config.json.templ
+++ b/config.json.templ
@@ -5,6 +5,8 @@
   },
   "client": {
     "address": "http://localhost:8086",
+    "username": "iot-relay",
+    "password": "",
     "db": "grafana",
     "measurement": "iot",
     "host": "iot-relay"
diff --git a/internal/client/client.go b/internal/client/client.go
index d5f1c09..f3ccb79 100644
--- a/internal/client/client.go
+++ b/internal/client/client.go
@@ -42,7 +42,14 @@ func GetHandler(config config.Config) types.Callback {
 
 		url := config.Client.Address + "/write?db=" + config.Client.DB
 
-		resp, err := http.Post(url, "application/octet-stream", strings.NewReader(line))
+		client := &http.Client{}
+		req, err := http.NewRequest("POST", url, strings.NewReader(line))
+
+		if len(config.Client.Username) != 0 && len(config.Client.Password) != 0 {
+			req.SetBasicAuth(config.Client.Username, config.Client.Password)
+		}
+
+		resp, err := client.Do(req)
 		if err != nil {
 			log.Println(err)
 			return err
diff --git a/internal/config/config.go b/internal/config/config.go
index a713409..81e7a7c 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -13,6 +13,8 @@ type Config struct {
 	} `json:"server"`
 	Client struct {
 		Address     string `json:"address"`
+		Username    string `json:"username"`
+		Password    string `json:"password"`
 		DB          string `json:"db"`
 		Measurement string `json:"measurement"`
 		Host        string `json:"host"`