'use strict'; var express = require('express'); var router = new express.Router(); var rootRoute = router.route('foobar'); rootRoute.post(function(req, res) { problem(req.body); }); function problem(val) { var ret = []; // Prevents DoS if (val.length > 100) { return []; } for (var i = 0; i < val.length; i++) { ret.push(val[i]); } }