ajcrites

function required(params) {
  return function (req, res, cb) {
    params.every(function (elem) { return req.body.hasOwnProperty(elem); })
      && cb()
      || res.send(400);
  };
};

/**
 * Sample route

ajcrites

var _ = require('lodash');
var test_data = [
  { id: 'a', order_by: 1 },
  { id: 'b', order_by: 2 },
  { id: 'c', order_by: 3 },
  { id: 'd', order_by: 4 },
  { id: 'e', order_by: 5 },
  { id: 'f', order_by: 6 },
  { id: 'g', order_by: 7 },
  { id: 'h', order_by: 8 },