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testServer.js
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testServer.js
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const express = require('express');
const path = require('path');
const request = require('request');
const cloudscraper = require('cloudscraper'); // using cloudscraper over request to bypass captchas
const cheerio = require('cheerio');
const app = express();
const port = process.env.PORT || 5000;
// Serve static files from the React app in Heroku
app.use(express.static(path.join(__dirname, 'client/build')));
app.get('/scrape', function (req, res) {
// console.log("hello world", req.query.ticker);
// TODO: add functionality to handle searches for market indexes, ex. ^DJI, ^GSPC
// let stockSymbol = req.query.ticker;
let stockSymbol = 'aapl';
let urls = [
{ id: 1, url: `https://www.marketwatch.com/investing/stock/${stockSymbol}` },
{ id: 2, url: `https://www.fool.com/quote/${stockSymbol}` },
{ id: 3, url: `https://www.barrons.com/search?keyword=${stockSymbol}&mod=DNH_S` },
{ id: 4, url: `https://investorplace.com/stock-quotes/${stockSymbol}-stock-quote/` },
{ id: 5, url: `https://www.thestreet.com/quote/${stockSymbol}/details/news.html` }, // 404
{ id: 6, url: `https://seekingalpha.com/symbol/${stockSymbol}` }, // captcha
{ id: 7, url: `https://www.bloomberg.com/quote/${stockSymbol}:US` }, // captcha
{ id: 8, url: `https://www.zacks.com/stock/quote/${stockSymbol}` }
];
// `https://www.investopedia.com/markets/stocks/${stockSymbol}`
cloudscraper.get(urls[7].url)
.then(html => {
let $ = cheerio.load(html);
let articles = [];
let articleCount = 0;
// scrapes 10 latest articles from The Motley Fool's "News & Analysis" section
$('#news-tab-1 article').each((index, val) => {
if (articleCount === 15) { return false } // stops pulling article data after 10 have been accumalated
let articleObj = {};
articleObj.title = $(val).find('a').text().trim();
let articleLink = $(val).find('a').attr('href');
articleObj.link = articleLink.includes('https://') ? articleLink : 'https://www.zacks.com' + articleLink;
articleObj.date = $(val).find('time').text().split('-')[0].trim();
articleObj.site = "Zacks";
articles.push(articleObj);
articleCount++;
})
console.log(articles);
})
// let allArticles = [];
// urls.forEach(url => {
// allArticles.push(stockScraper(url.id, url.url));
// });
// function stockScraper(urlId, url) {
// return new Promise((resolve, reject) => {
// switch (urlId) { // handles data scraping for different sites
// case 1: // MarketWatch
// cloudscraper.get(url)
// .then(html => {
// let $ = cheerio.load(html);
// let articles = [];
// let articleCount = 0;
// // scrapes 15 latest articles from MarketWatch's "Recent News" section
// $('.collection__list .element--article .article__content').each((index, val) => {
// if (articleCount === 15) { return false } // stops pulling article data after 10 have been accumalated
// let articleObj = {};
// articleObj.title = $(val).children().first().children().text();
// articleObj.link = $(val).find('.article__headline').children().first().attr('href');
// articleObj.date = $(val).find('.article__details').find('.article__timestamp').text();
// articleObj.site = "MarketWatch";
// articles.push(articleObj);
// articleCount++;
// })
// resolve(articles);
// })
// break;
// case 2: // Motley Fool
// cloudscraper.get(url)
// .then(html => {
// let $ = cheerio.load(html);
// let articles = [];
// let articleCount = 0;
// // scrapes 10 latest articles from The Motley Fool's "News & Analysis" section
// $('.list-content article .text').each((index, val) => {
// if (articleCount === 10) { return false } // stops pulling article data after 10 have been accumalated
// let articleObj = {};
// articleObj.title = $(val).find('h4').text();
// articleObj.link = 'https://www.fool.com' + $(val).find('h4').children().attr('href');
// articleObj.date = $(val).find('.story-date-author').text().split("|")[1].trim();
// articleObj.site = "Motley Fool";
// articles.push(articleObj);
// articleCount++;
// })
// resolve(articles);
// })
// break;
// case 3: // Yahoo Finance
// break;
// case 4: // TheStreet
// break;
// case 5: // Seeking Alpha
// cloudscraper.get(url)
// .then(html => {
// // console.log(html)
// let $ = cheerio.load(html);
// let articles = [];
// // scrapes articles from Seeking Alpha's "Analysis" section
// $('.content_block_investment_views ul .symbol_item .content .symbol_article').each((index, val) => {
// let articleObj = {};
// articleObj.title = $(val).children().first().text();
// articleObj.link = 'https://seekingalpha.com/' + $(val).children().first().attr('href');
// articleObj.date = $(val).children().last().text().split("•")[1];
// articleObj.site = "Seeking Alpha";
// articles.push(articleObj);
// })
// // scrapes articles from Seeking Alpha's "News" section
// $('.symbol_latest_articles #symbol-page-latest .symbol_item .content').each((index, val) => {
// let articleObj = {};
// articleObj.title = $(val).children().first().children().text();
// articleObj.link = 'https://seekingalpha.com/' + $(val).children().first().children().attr('href');
// articleObj.date = $(val).children().last().text().split("•")[1];
// articleObj.site = "Seeking Alpha";
// articles.push(articleObj);
// })
// // console.log(articles);
// resolve(articles);
// })
// break;
// case 6: // Bloomberg
// break;
// default:
// reject('Something went wrong with the scraper, or the URL is not included in the scraper');
// }
// });
// };
// // shuffles articles in array
// // https://stackoverflow.com/questions/6274339/how-can-i-shuffle-an-array
// function shuffle(a) {
// for (let i = a.length - 1; i > 0; i--) {
// const j = Math.floor(Math.random() * (i + 1));
// [a[i], a[j]] = [a[j], a[i]];
// }
// return a;
// }
// // return data to front-end
// Promise.all(allArticles).then(articles => {
// let allArticles = [];
// // filter out articles without a title
// articles.map(articlesArr => {
// articlesArr.map(article => {
// if (article.title !== '') {
// allArticles.push(article)
// }
// })
// });
// res.send(shuffle(allArticles));
// console.log(allArticles);
// })
})
// The "catchall" handler: for any request that doesn't
// match one above, send back React's index.html file.
app.get('*', (req, res) => {
res.sendFile(path.join(__dirname + '/client/build/index.html'));
});
app.listen(port, () => console.log(`Listening on port ${port}`));
module.exports = app;