if err != nil {
		response.WriteError(http.StatusInternalServerError, err)
		return
	}
	writeJSONResponse(response, data)
}

// Derived from go-restful writeJSON.
func writeJSONResponse(response *restful.Response, data []byte) {
	if data == nil {
		response.WriteHeader(http.StatusOK)
		// do not write a nil representation
		return
	}