puppeteer js

1require('dotenv/config')
2const puppeteer = require('puppeteer')
3
4(async () => {
5	try {
6		const browser = await puppeteer.launch({
7			headless: false,
8			args: [
9				'--allow-external-pages',
10				'--allow-third-party-modules',
11				'--data-reduction-proxy-http-proxies',
12				'--no-sandbox'
13			]
14		})
15		const context = await browser.createIncognitoBrowserContext()
16		const page = await context.newPage()
17		await page.goto('https://medium.com', { waitUntil: 'networkidle2' })
18		await page.setUserAgent(process.env.USER_AGENT)
19		// await page.setViewport({ width: 1920, height: 1080 })
20		await page.evaluate(() => window.scrollBy(0, 1000))
21		await page.waitForTimeout()
22		await page.click('.qw a')
23		await page.waitForNavigation({ waitUntil: 'networkidle2', delay: 1000 })
24		await page.click('a[aria-label="Search"]')
25		await page.waitForNavigation({ waitUntil: 'networkidle2', delay: 1000 })
26		await page.focus('.js-searchInput')
27		await page.type('.js-searchInput', 'react', { delay: 100 })
28		await page.waitForSelector('.js-searchInput', { timeout: 1000 })
29		await page.keyboard.press(String.fromCharCode(13))
30		await page.waitForSelector('.js-postListHandle', { timeout: 1000 })
31		await page.screenshot({ path: 'screnshoot.jpg', quality: 80 })
32
33		await browser.close()
34	} catch (err) {
35		console.log(`'Puppeteer Error Detencted -> ${err}'`)
36	}
37})()
38

1const puppeteer = require('puppeteer');
2
3(async () => {
4  const browser = await puppeteer.launch();
5  const page = await browser.newPage();
6  await page.goto('https://news.ycombinator.com', {waitUntil: 'networkidle2'});
7  await page.pdf({path: 'hn.pdf', format: 'A4'});
8
9  await browser.close();
10})();

1const puppeteer = require('puppeteer');
2
3(async () => {
4  const browser = await puppeteer.launch();
5  const page = await browser.newPage();
6  await page.goto('https://example.com');
7  await page.screenshot({path: 'example.png'});
8
9  await browser.close();
10})();

1...
2await page.addScriptTag({url: 'https://code.jquery.com/jquery-3.2.1.min.js'})
3...
4