func listTagsHandler(rr repository.TagRepository) func(http.ResponseWriter, *http.Request) { return func(w http.ResponseWriter, r *http.Request) { tags, err := rr.GetAll() if err != nil { http.Error(w, "Internal server error", http.StatusInternalServerError) return } tagsJson, err := json.Marshal(tags) if err != nil { http.Error(w, "Internal server error", http.StatusInternalServerError) return } w.Header().Set("Content-Type", "application/json") w.Write(tagsJson) } }