errorHandler.js

/* ------------------------------- */
/*  common/errorHandler.js */
/* ------------------------------- */

const asyncUtil = fn =>
function asyncUtilWrap(...args) {
  const fnReturn = fn(...args)
  const next = args[args.length-1]
  return Promise.resolve(fnReturn).catch(next)
}

export default asyncUtil;

/* ------------------------------- */
/*  server.js */
/* ------------------------------- */

app.get('/', asyncMiddleware(async (req, res, next) => {
  const html = await renderHtml(req.body);
  res.send(user)
 });