import {Response} from 'express-serve-static-core'; const resProto = Object.create({}, { headers: { enumerable: true, value: {}, writable: true }, status: { enumerable: true, value: 0, writable: true }, }); export function resSerializer(res: Response) { const sRes = Object.create(resProto); sRes.status = res.statusCode; sRes.headers = res.getHeaders(); return sRes; }