Created
October 27, 2020 14:12
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Fetch and render using an specific google chrome version. We'll use appropiate zenika/alpine-chrome docker image.
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// puppeteer-fetch-and-render-docker.js | |
// Fetch and render using an specific google chrome version | |
// We'll use appropiate zenika/alpine-chrome docker image. More information: https://github.com/Zenika/alpine-chrome | |
// Run: | |
// $ docker run -it --mount src="$(pwd)",target=/myproject,type=bind zenika/alpine-chrome:76-with-puppeteer /bin/sh | |
// /usr/src/app# cp /myproject/puppeteer-fetch-and-render.js . | |
// /usr/src/app# node puppeteer-fetch-and-render.js | |
// /usr/src/app# cp screenshot.png /myproject | |
// /usr/src/app# exit | |
const puppeteer = require('puppeteer'); | |
(async () => { | |
const browser = await puppeteer.launch({ | |
headless: true, | |
executablePath: '/usr/bin/chromium-browser', | |
args: ['--no-sandbox', '--disable-setuid-sandbox'] | |
}); | |
const page = await browser.newPage(); | |
// Descriptors for other mobile devices: https://github.com/puppeteer/puppeteer/blob/main/src/common/DeviceDescriptors.ts | |
const mobile = { | |
name: 'Nexus 5X', | |
userAgent: | |
'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 5X Build/OPR4.170623.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3765.0 Mobile Safari/537.36', | |
viewport: { | |
width: 412, | |
height: 732, | |
deviceScaleFactor: 2.625, | |
isMobile: true, | |
hasTouch: true, | |
isLandscape: false, | |
} | |
}; | |
// Comment the next line if you want to render with the desktop version | |
await page.emulate(mobile); | |
// Modify with the URL you want to render | |
await page.goto('https://rawgit.com/GoogleChromeLabs/puppeteer-examples/master/html/lazyload.html', {waitUntil: 'load'}); | |
await autoScroll(page); | |
console.log(await page.browser().version()); | |
console.log(await page.content()); | |
await page.screenshot({path: 'screenshot.png', fullPage: true}); | |
await browser.close(); | |
async function autoScroll(page){ | |
await page.evaluate(async () => { | |
await new Promise((resolve, reject) => { | |
var totalHeight = 0; | |
var distance = 100; | |
var timer = setInterval(() => { | |
var scrollHeight = document.body.scrollHeight; | |
window.scrollBy(0, distance); | |
totalHeight += distance; | |
if(totalHeight >= scrollHeight){ | |
clearInterval(timer); | |
resolve(); | |
} | |
}, 100); | |
}); | |
}); | |
} | |
})(); |
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