func (r Router) listUsers(w http.ResponseWriter, req *http.Request) { user := models.User{DB: r.DB} result, err := user.List() w.Header().Set("Content-Type", "application/json; charset=UTF-8") if err != nil { w.WriteHeader(500) io.WriteString(w, err.Error()) } else { w.WriteHeader(200) json.NewEncoder(w).Encode(result) } }