mirror of
https://github.com/puppeteer/puppeteer
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55 lines
2.1 KiB
Markdown
55 lines
2.1 KiB
Markdown
# Puppeteer
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[](https://github.com/puppeteer/puppeteer/actions/workflows/ci.yml)
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[](https://npmjs.org/package/puppeteer)
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<img src="https://user-images.githubusercontent.com/10379601/29446482-04f7036a-841f-11e7-9872-91d1fc2ea683.png" height="200" align="right"/>
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> Puppeteer is a Node.js library which provides a high-level API to control
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> Chrome or Firefox over the
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> [DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/) or [WebDriver BiDi](https://pptr.dev/webdriver-bidi).
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> Puppeteer runs in the headless (no visible UI) by default
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> but can be configured to run in a visible ("headful") browser.
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## [Get started](https://pptr.dev/docs) | [API](https://pptr.dev/api) | [FAQ](https://pptr.dev/faq) | [Contributing](https://pptr.dev/contributing) | [Troubleshooting](https://pptr.dev/troubleshooting)
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## Installation
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```bash npm2yarn
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npm i puppeteer # Downloads compatible Chrome during installation.
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npm i puppeteer-core # Alternatively, install as a library, without downloading Chrome.
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```
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## Example
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```ts
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import puppeteer from 'puppeteer'; // or import puppeteer from 'puppeteer-core';
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// Launch the browser and open a new blank page
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const browser = await puppeteer.launch();
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const page = await browser.newPage();
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// Navigate the page to a URL.
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await page.goto('https://developer.chrome.com/');
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// Set screen size.
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await page.setViewport({width: 1080, height: 1024});
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// Type into search box.
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await page.type('.devsite-search-field', 'automate beyond recorder');
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// Wait and click on first result.
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const searchResultSelector = '.devsite-result-item-link';
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await page.waitForSelector(searchResultSelector);
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await page.click(searchResultSelector);
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// Locate the full title with a unique string.
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const textSelector = await page.waitForSelector('text/Customize and automate');
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const fullTitle = await textSelector?.evaluate(el => el.textContent);
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// Print the full title.
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console.log('The title of this blog post is "%s".', fullTitle);
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await browser.close();
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```
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