puppeteer/new-docs/puppeteer.puppeteernode.md
Jack Franklin e655bb6ca2
chore(agnostification): split up root Puppeteer class (#6504)
The `Puppeteer` class had two concerns:

* connect to an existing browser
* launch a new browser

The first of those concerns is needed in all environments, but the
second is only needed in Node.
https://github.com/puppeteer/puppeteer/pull/6484 landing enabled us to
pull the `Puppeteer` class apart into two:

1. `Puppeteer` which hosts the behaviour for connecting to existing
   browsers.
2. `PuppeteerNode`, which extends `Puppeteer` and also adds the ability
   to launch a new browser.

This is a non-breaking change, because Node users will still get an
instance of a class with all the methods they expect, but it'll be a
`PuppeteerNode` rather than `Puppeteer`. I don't expect this to cause
people any issues.

We also now have new files that are effectively the entry points for
Puppeteer:

* `node.ts`: the main entry point for Puppeteer on Node.
* `web.ts`: the main entry point for Puppeteer on the web.
* `node-puppeteer-core.ts`: for those using puppeteer-core (which only
  exists in Node, not on the web).
2020-10-13 16:19:26 +01:00

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [PuppeteerNode](./puppeteer.puppeteernode.md)
## PuppeteerNode class
Extends the main [Puppeteer](./puppeteer.puppeteer.md) class with Node specific behaviour for fetching and downloading browsers.
If you're using Puppeteer in a Node environment, this is the class you'll get when you run `require('puppeteer')` (or the equivalent ES `import`<!-- -->).
<b>Signature:</b>
```typescript
export declare class PuppeteerNode extends Puppeteer
```
<b>Extends:</b> [Puppeteer](./puppeteer.puppeteer.md)
## Remarks
The most common method to use is [launch](./puppeteer.puppeteernode.launch.md)<!-- -->, which is used to launch and connect to a new browser instance.
See [the main Puppeteer class](./puppeteer.puppeteer.md) for methods common to all environments, such as [Puppeteer.connect()](./puppeteer.puppeteer.connect.md)<!-- -->.
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `PuppeteerNode` class.
## Example
The following is a typical example of using Puppeteer to drive automation:
```js
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://www.google.com');
// other actions...
await browser.close();
})();
```
Once you have created a `page` you have access to a large API to interact with the page, navigate, or find certain elements in that page. The [\`page\` documentation](./puppeteer.page.md) lists all the available methods.
## Properties
| Property | Modifiers | Type | Description |
| --- | --- | --- | --- |
| [product](./puppeteer.puppeteernode.product.md) | | string | The name of the browser that is under automation (<code>&quot;chrome&quot;</code> or <code>&quot;firefox&quot;</code>) |
## Methods
| Method | Modifiers | Description |
| --- | --- | --- |
| [connect(options)](./puppeteer.puppeteernode.connect.md) | | This method attaches Puppeteer to an existing browser instance. |
| [createBrowserFetcher(options)](./puppeteer.puppeteernode.createbrowserfetcher.md) | | |
| [defaultArgs(options)](./puppeteer.puppeteernode.defaultargs.md) | | |
| [executablePath()](./puppeteer.puppeteernode.executablepath.md) | | |
| [launch(options)](./puppeteer.puppeteernode.launch.md) | | Launches puppeteer and launches a browser instance with given arguments and options when specified. |