@tlrg/middleware-js/lib/middlewares/predictiveAnalytics/index.js

Node module for sharing common middlewares.

var rp = require('request-promise');
var logger = require('tlrg-logger')();

function setCookie (res, cookieVal) {
    var cookieOpts = {
        maxAge: 86400 // 1 day
    };
    res.cookie('PACookie', cookieVal, cookieOpts);
}

module.exports = function createPACookie (req, res, next) {
    // If cookie doesn't exist, set cookie.
    if (!req.cookies.PACookie) {
        rp('https://www.random.org/integers/?num=1&min=1&max=10&col=1&base=10&format=plain&rnd=new')
            .then(function (htmlString) {
                setCookie(res, htmlString);
                req.moonstick.predictiveAnalytics = htmlString;
                next();
            })
            .catch(function (err) {
                // deal with error
                logger.info('Error setting PACookie', err);
                next();
            });
    } else {
        var cookieVal = req.cookies.PACookie;
        req.moonstick.predictiveAnalytics = cookieVal;
        next();
    }
};