Strong Parameter for Express

strong-params.js

exports.parameterPermitter = function ({ params = [] }) {
  if (!Array.isArray(params)) throw new Error(`Request Parameter ${params} is invalid parameters array`)


  return function (req, res, next) {
    res.locals.permitted = {}
    params.forEach((param) => {
      if (!req.body.hasOwnProperty(param)) throw new Error(`${param} is required`)
      res.locals.permitted[param] = req.body[param]
    })
    next()
  }
}

/**
 * Parameter Permitter Example
 */ 
/*
router.post('/', paramsPermitter({
  params: ['world']
}), function (req, res, next) {
  res.json(res.locals.permitted)
});
*/

middleware strong-params recommended