“Exemple de grat en ligne js” Réponses codées

Comment gratter le Web avec JavaScript

// You will need to install and run Node.js prior to setting up
const puppeteer = require('puppeteer');

async function scrapeProduct(url) {
    const browser = await puppeteer.launch();
    const page = await browser.newPage();
    await page.goto(url);

    const [el] = await page.$x('/html/body/div[1]/div[2]/div[9]/div[4]/div[3]/div[1]/div[1]/div/div/div[2]/div[1]/div[1]/ul/li[1]/span/span/div/img');
    const src = await el.getProperty('src');
    const imgURL = await src.jsonValue();

    const [el2] = await page.$x('/html/body/div[1]/div[2]/div[9]/div[4]/div[4]/div[1]/div/h1/span');
    const txt = await el2.getProperty('textContent');
    const title = await txt.jsonValue();

    const [el3] = await page.$x('/html/body/div[1]/div[2]/div[9]/div[4]/div[4]/div[10]/div[1]/div/table/tbody/tr[2]/td[2]/span[1]');
    const txt2 = await el3.getProperty('textContent');
    const price = await txt2.jsonValue();

    console.log({
        imgURL,
        title,
        price
    });

    browser.close();
}

scrapeProduct('https://www.amazon.com/Business-Microphone-Upgraded-NexiGo-Computer/dp/B08BHX7GYY/?_encoding=UTF8&smid=A1HNC035CZ2MR5&pd_rd_w=GsaOJ&pf_rd_p=45f0d3b0-8ddc-4840-9ac2-c26f2608345f&pf_rd_r=A1TQ15FXBKJH1JWYXXAD&pd_rd_r=82f7f31d-db1c-4831-96a3-bb110b1133f9&pd_rd_wg=urW4C&ref_=pd_gw_unk');
Anthony Smith

Exemple de grat en ligne js

// This example uses axios, cheerio & Express
const PORT = 8000;
const axios = require('axios');
const cheerio = require('cheerio');
const express = require('express');

const app = express();

const url = 'https://www.theguardian.com/uk';

axios(url)
    .then(response => {
        const html = response.data
        const $ = cheerio.load(html)
        const articles = [];
        $('.fc-sublink__title', html).each(function() {
            const title = $(this).text();
            const url = $(this).find('a').attr('href');
            articles.push({
                title,
                url
            })
        })
        console.log(articles)

    }).catch(err => console.log(err))

app.listen(PORT, () => console.log(`server running on PORT ${PORT}`))
Anthony Smith

Page de gratter JavaScript

const http = require('http');
const PORT = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World');
});

server.listen(port, () => {
  console.log(`Server running at PORT:${port}/`);
});
Worried Wolverine

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