diff --git a/api/http/config.go b/api/http/config.go
index 23d391f..17ac09a 100644
--- a/api/http/config.go
+++ b/api/http/config.go
@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
-	ccc "th7/config"
+	cfg "th7/config"
 	"th7/data/config"
 
 	"github.com/gin-gonic/gin"
@@ -28,9 +28,6 @@ func (g *GinAdapter) getConfigByID(id int) (config.Channel, error) {
 
 // check if a supplied key string is in the device struct (TH7)
 func configDeviceIsValidKey(key string) bool {
-	deviceKeys := []string{
-		"debug", "nolog", "noweb", "led",
-	}
 
 	key = strings.ToLower(key)
 
@@ -90,10 +87,6 @@ func (g *GinAdapter) validConfigChannel(id int) bool {
 }
 
 func configChannelIsValidKey(key string) bool {
-	// will add more later
-	channelKeys := []string{
-		"thermocouple", "gain", "offset",
-	}
 
 	key = strings.ToLower(key)
 
@@ -108,9 +101,11 @@ func configChannelIsValidKey(key string) bool {
 
 func (g *GinAdapter) configChannelUpdateValue(id int, key string, value string) error {
 
+	var cfgChannelPtr *config.Channel
+
 	key = strings.ToLower(key)
 	value = strings.ToLower(value)
-	var cfgChannelPtr *config.Channel
+
 	foundChannel := false
 
 	// find the channel, given and checked by id
@@ -127,7 +122,7 @@ func (g *GinAdapter) configChannelUpdateValue(id int, key string, value string)
 
 	switch key {
 	case "thermocouple":
-		tc, err := ccc.GetThermocoupleType(value)
+		tc, err := cfg.GetThermocoupleType(value)
 		if err != nil {
 			return err
 		}
@@ -159,17 +154,13 @@ func (g *GinAdapter) GetConfigChannelByIdHandler(c *gin.Context) {
 	id, err := strconv.Atoi(c.Param("id"))
 
 	if err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{
-			"error": err,
-		})
+		c.String(http.StatusBadRequest, err.Error())
 		return
 	}
 
 	channel, err := g.getConfigByID(id)
 	if err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{
-			"error": err,
-		})
+		c.String(http.StatusBadRequest, err.Error())
 		return
 	}
 
@@ -202,16 +193,13 @@ func (g *GinAdapter) GetConfigDBHandler(c *gin.Context) {
 	var timestamp string
 
 	if g.cfg.API[0].Restricted {
-		c.JSON(http.StatusForbidden, gin.H{
-			"error": ErrConfigRestrictedDB,
-		})
+		c.String(http.StatusForbidden, ErrConfigRestrictedDB.Error())
 		return
 	}
 
 	timestamp = g.getTimestamp()
 
 	c.JSON(http.StatusOK, gin.H{
-		//		"db":   g.getConfigDB(),
 		"db":   g.cfg.DB,
 		"time": timestamp,
 	})
diff --git a/api/http/data.go b/api/http/data.go
index c641b02..8219b9d 100644
--- a/api/http/data.go
+++ b/api/http/data.go
@@ -31,17 +31,13 @@ func (g *GinAdapter) GetChannelByIDHandler(c *gin.Context) {
 	id, err := strconv.Atoi(c.Param("id"))
 
 	if err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{
-			"error": err,
-		})
+		c.String(http.StatusBadRequest, err.Error())
 		return
 	}
 
 	channel, err := g.getChannelByID(id)
 	if err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{
-			"error": err,
-		})
+		c.String(http.StatusBadRequest, err.Error())
 		return
 	}
 
diff --git a/api/http/gin.go b/api/http/gin.go
index 5d098f8..411b508 100644
--- a/api/http/gin.go
+++ b/api/http/gin.go
@@ -49,8 +49,6 @@ func NewGinAdapter(corePort ports.CorePort, cfg config.Config) *GinAdapter {
 	adapter.router.POST("/config/channel/:id", adapter.SetConfigChannelByIdHandler)
 	adapter.router.POST("/config/db", adapter.SetConfigDBHandler)
 
-	//adapter.router.GET("/time", adapter.TimestampHandler)
-
 	adapter.router.LoadHTMLGlob("./templates/*.tmpl")
 	adapter.router.Static("/assets", "./static")
 	adapter.router.GET("/", adapter.IndexHandler)
diff --git a/api/http/util.go b/api/http/util.go
index 7e6eca1..8ecc9ce 100644
--- a/api/http/util.go
+++ b/api/http/util.go
@@ -7,6 +7,16 @@ type PostRequest struct {
 	Value string `form:"value" binding:"required"`
 }
 
+var (
+	channelKeys = []string{
+		"thermocouple", "gain", "offset",
+	}
+
+	deviceKeys = []string{
+		"debug", "nolog", "noweb", "led",
+	}
+)
+
 func (g *GinAdapter) getTimestamp() string {
 	return time.Now().Format(time.RFC1123)
 }