FBscrapers.js

const Credentials = require('./credentialss'), // Include our credentials
    Nightmare = require('nightmare'),
    vo = require('vo'),
    nightmare = Nightmare({show: true}),
    domain = 'https://facebook.com',      // Initial navigation domain
    groups = ['https://www.facebook.com/groups/394556737385005/?sorting_setting=RECENT_ACTIVITY', // Scrapable group array
        'https://www.facebook.com/groups/391908637633014/?sorting_setting=RECENT_ACTIVITY'];

// add console logging - makes life a bit easier
nightmare
    .on('console', (log, msg) => {
        console.log(msg);
        console.log(Credentials.facebook_username);
    })
    .useragent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36") // browser info - not essential
    .goto(domain)
    .type('input[id="email"]', Credentials.facebook_username)
    .type('input[id="pass"]', Credentials.facebook_password)
    .click('#loginbutton>input')
    .wait(3000) // will wait 3 seconds to load next page
    .then(() => {
        var run = function* () {
            for (var i = 0; groups.length > i; i++) {
                var post = yield nightmare.goto(groups[i])
                    .wait(200) // I like to wait tiny bit before injecting jQuery
                    .inject('js', './node_modules/jquery/dist/jquery.js') // injecting jQuery into the page
                    .wait(3000)
                    .evaluate(() => {
                        var posts = [];
                        $('._5pcr').each(function (index) {
                            var post = {};
                            var userName = $(this).find('h5 a').text();
                            var price = $(this).find('._l57').text();
                            var postDate = $(this).find('abbr').attr('title');
                            var postTitle = $(this).find('._l53>span:last-child').text();
                            var location = $(this).find('.mtm ._l58').text();
                            var description = $(this).find('.userContent p').text();

                            post.id = index;
                            post.price = price;
                            post.username = userName;
                            post.date = postDate;
                            post.title = postTitle;
                            post.location = location;
                            post.description = description;
                            posts.push(post);
                        })
                        return posts;
                    })
                    .then(function (posts) {
                        console.log(posts);
                        postData = posts;
                    })
            }
        }
        // setInterval(() => {
        vo(run)((res) => {
            console.log(res);
        })
        // }, 1800000)
    })
    .catch((error) => {
        console.error('Something went wrong:', error)
    });