Switching to sql.nulltype

Http/utils.go

@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/gorilla/mux"
+	"gopkg.in/guregu/null.v4"
 )
 
 func RequestHandler(w http.ResponseWriter, r *http.Request) {
@@ -63,7 +64,7 @@ func GetOSbyID(w http.ResponseWriter, r *http.Request) {
 }
 
 func GetDistributionList(w http.ResponseWriter, r *http.Request) {
-	var list []string
+	var list []null.String
 	var err error
 
 	t := time.Now()
@@ -82,7 +83,7 @@ func GetDistributionList(w http.ResponseWriter, r *http.Request) {
 }
 
 func GetVersionByDistributionList(w http.ResponseWriter, r *http.Request) {
-	var list []string
+	var list []null.String
 	var err error
 
 	t := time.Now()