function ApiResponse() {} ApiResponse.error = (err, code, data) => { const result = {}; result.ok = false; result.code = code; result.data = data; if (err instanceof Error) { result.error = err.toString(); } else { result.error = err; } return result; }; ApiResponse.success = (data) => { const result = data || {}; result.ok = true; return result; }; module.exports = ApiResponse;