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@cliqz/adblocker-playwright

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@cliqz/adblocker-playwright

Cliqz adblocker Playwright wrapper

  • 1.28.0
  • Source
  • npm
  • Socket score

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2.6K
decreased by-36.11%
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Playwright Adblocker

Efficient · Minimal · JavaScript · TypeScript · uBlock Origin- and Easylist-compatible
Node.js · Puppeteer · Electron · WebExtension

Github Actions Build Status Github Actions Assets Status Blazing Fast npm version weekly downloads from npm
code style: prettier Follow Cliqz on Twitter Dependabot License Badge LGTM Badge


Getting Started

Install: npm install --save @cliqz/adblocker-playwright.

Usage

For a complete example check-out: @cliqz/adblocker-playwright-example.

Creating an instance of PlaywrightBlocker and start blocking ads!

import * as pw from 'playwright';
import { PlaywrightBlocker } from '@cliqz/adblocker-playwright';
import fetch from 'cross-fetch'; // required 'fetch'

const browser = await pw.firefox.launch({ headless: false });
const page = await browser.newPage();

PlaywrightBlocker.fromPrebuiltAdsAndTracking(fetch).then((blocker) => {
  blocker.enableBlockingInPage(page);
});

You are ready to block ads!

There are other ways you can create an instance of the blocking engine to start blocking ads.

If you already have filters locally:

import { PlaywrightBlocker } from '@cliqz/adblocker-playwright';

const blocker = PlaywrightBlocker.parse(fs.readFileSync('easylist.txt', 'utf-8'));

Fetching lists from URLs:

import { PlaywrightBlocker } from '@cliqz/adblocker-playwright';
import fetch from 'cross-fetch'; // required 'fetch'

const blocker = await PlaywrightBlocker.fromLists(fetch, [
  'https://easylist.to/easylist/easylist.txt'
]);

Use ready-made configs to block ads and optionally trackers:

import { PlaywrightBlocker } from '@cliqz/adblocker-playwright';
import fetch from 'cross-fetch'; // required 'fetch'

let blocker = await PlaywrightBlocker.fromPrebuiltAdsOnly(fetch); // ads only
blocker = await PlaywrightBlocker.fromPrebuiltAdsAndTracking(fetch); // ads and tracking

Disabling Blocker in page

To stop blocking ads in a page:

await blocker.disableBlockingInPage(page);

Caching Blocker using Serialization

To avoid having to create the same instance of PlaywrightBlocker all over again, you can serialize it to a byte-array which you can store on disk for faster loading.

import * as pw from 'playwright';
import { PlaywrightBlocker } from '@cliqz/adblocker-playwright';
import fetch from 'cross-fetch'; // required 'fetch'
import { promises as fs } from 'fs'; // used for caching

const browser = await pw.firefox.launch({ headless: false });
const page = await browser.newPage();

PlaywrightBlocker.fromPrebuiltAdsAndTracking(fetch, {
  path: 'engine.bin',
  read: fs.readFile,
  write: fs.writeFile,
}).then((blocker) => {
  blocker.enableBlockingInPage(page);
});

Or you can do this manually to control the way caching is done:

import { PlaywrightBlocker } from '@cliqz/adblocker-playwright';
import fetch from 'cross-fetch'; // required 'fetch'

PlaywrightBlocker.fromPrebuiltAdsAndTracking(fetch).then((blocker) => {
  const buffer = blocker.serialize();
  const restoredBlocker = PlaywrightBlocker.deserialize(buffer);
  // `restoredBlocker` is deep-equal to `blocker`!
});

FAQs

Package last updated on 09 Jul 2024

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