diff --git a/lib/services/services.go b/lib/services/services.go
index 076cfab2..3222f8a4 100644
--- a/lib/services/services.go
+++ b/lib/services/services.go
@@ -163,7 +163,7 @@ func IsVallidContentType(r *http.Request, checkFlag bool) bool {
 			return false
 		}
 	*/
-	if strings.Contains(r.Header.Get("Content-Type"), "application/json") || checkFlag == false {
+	if strings.Contains(r.Header.Get("Content-Type"), "application/json") || !checkFlag {
 		return true
 	}
 	return false
@@ -298,14 +298,14 @@ func CheckNorthboundValidRequest(w http.ResponseWriter, r *http.Request) (string
 	// error processing ...
 	// 401-1 response
 	token, ret = oauth.IsCarriedToken(r)
-	if ret == false {
+	if !ret {
 		log.Error("accessToken is not carried")
 		ResponseUnauthorized401AccessTokenNotCarried(w)
 		return token, err
 	}
 
 	// 401-2 response
-	if dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) == false {
+	if !dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) {
 		log.Error("accessToken fails or does not exist")
 		ResponseUnauthorized401AccessTokenNotExist(w)
 		return token, err
@@ -393,7 +393,7 @@ func CheckCommonValidRequest(w http.ResponseWriter, r *http.Request) (string, er
 	}
 
 	// 401-2 response
-	if dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) == false {
+	if !dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) {
 		log.Error("accessToken fails or does not exist")
 		ResponseUnauthorized401AccessTokenNotExist(w)
 		return token, err
@@ -420,7 +420,7 @@ func CheckCommonValidRequest(w http.ResponseWriter, r *http.Request) (string, er
 }
 
 func CheckUserPermission(token, method, module, dbname, tbname, pack string) (bool, error) {
-	if config.GetYamlConfig().OMC.RBACMode == true {
+	if config.GetYamlConfig().OMC.RBACMode {
 		if module == "" {
 			module = "*"
 		}
@@ -477,7 +477,7 @@ func CheckFrontValidRequest(w http.ResponseWriter, r *http.Request) (string, err
 
 	// error processing ...
 	// 401-1 response
-	if config.GetYamlConfig().Auth.Token && IsLocalhost(r.RemoteAddr) == false {
+	if config.GetYamlConfig().Auth.Token && !IsLocalhost(r.RemoteAddr) {
 		token, ret = oauth.IsCarriedToken(r)
 		if !ret {
 			err = errors.New("accessToken is not carried")
@@ -487,7 +487,7 @@ func CheckFrontValidRequest(w http.ResponseWriter, r *http.Request) (string, err
 		}
 
 		// 401-2 response
-		if dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) == false {
+		if !dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) {
 			err = errors.New("accessToken fails or does not exist")
 			log.Error(err)
 			ResponseUnauthorized401AccessTokenNotExist(w)
@@ -535,7 +535,7 @@ func CheckExtValidRequest(w http.ResponseWriter, r *http.Request) (string, error
 		}
 
 		// 401-2 response
-		if dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) == false {
+		if !dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) {
 			err = errors.New("accessToken fails or does not exist")
 			log.Error(err)
 			ResponseUnauthorized401AccessTokenNotExist(w)