Working json return for OSes list

Http/utils.go

@@ -1,6 +1,7 @@
 package http
 
 import (
+	"encoding/json"
 	"fmt"
 	db "infra-dashboard/Database"
 	opsys "infra-dashboard/OS"
@@ -21,16 +22,24 @@ func HealthHandler(w http.ResponseWriter, _ *http.Request) {
 }
 
 func GetOS(w http.ResponseWriter, r *http.Request) {
+	var list []opsys.OS
+	var err error
+
 	t := time.Now()
+	status := 200
+
 	db_conn := db.GetDatabaseConnection()
-	list, err := opsys.GetOS(db_conn)
+	defer db_conn.Close()
+	list, err = opsys.GetOS(db_conn)
 	if err != nil {
 		log.Println("Error getting OS list")
+		status = 500
 	}
 	log.Println("list: ", list)
 
-	logRequest(t, r, 200)
-	fmt.Fprint(w, "Hello, World!")
+	logRequest(t, r, status)
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(list)
 }
 
 func logRequest(t time.Time, r *http.Request, s int) {