Node Express Promise

gistfile1.js

/**
 * Catch all promise function
 * @param {Object} func
 * @param {Request} request
 * @param {Response} response
 */
const fn = (func, request, response) => {
  console.log(request.method, request.originalUrl);
  const params = Object.assign({}, request.params, request.query, request.body);
  try {
    func(params)
      .then(output => response.status(200).send(output))
      .catch(err => { console.error(err); response.status(500).send({ error: err }); });
  } catch (e) {
    console.error(e);
    response.status(500).send({ error: e.toString() });
  }
};

/* A basic promise function */
const doSomethingCool = () => {
  return doAjax()
    .then(() => doAjax(2))
};


/* Used similar to the below: */
app.get('/something-here', (req, res, next) => fn(doSomethingCool, req, res));