puppeteer/docs/api/puppeteer.puppeteer.md
jrandolf 1847704789
fix!: refactor custom query handler API (#9078)
This PR removes the deprecated query selector API from the `puppeteer`
instance. Direct imports of the query selector API have also been
deprecated and users are now expected to use the static methods defined
on `Puppeteer`.
2022-10-10 16:01:09 +02:00

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---
sidebar_label: Puppeteer
---
# Puppeteer class
The main Puppeteer class.
IMPORTANT: if you are using Puppeteer in a Node environment, you will get an instance of [PuppeteerNode](./puppeteer.puppeteernode.md) when you import or require `puppeteer`. That class extends `Puppeteer`, so has all the methods documented below as well as all that are defined on [PuppeteerNode](./puppeteer.puppeteernode.md).
**Signature:**
```typescript
export declare class Puppeteer
```
## Remarks
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `Puppeteer` class.
## Methods
| Method | Modifiers | Description |
| ----------------------------------------------------------------------------------------------------- | ------------------- | ---------------------------------------------------------------------- |
| [clearCustomQueryHandlers()](./puppeteer.puppeteer.clearcustomqueryhandlers.md) | <code>static</code> | Unregisters all custom query handlers. |
| [connect(options)](./puppeteer.puppeteer.connect.md) | | This method attaches Puppeteer to an existing browser instance. |
| [customQueryHandlerNames()](./puppeteer.puppeteer.customqueryhandlernames.md) | <code>static</code> | Gets the names of all custom query handlers. |
| [registerCustomQueryHandler(name, queryHandler)](./puppeteer.puppeteer.registercustomqueryhandler.md) | <code>static</code> | Registers a [custom query handler](./puppeteer.customqueryhandler.md). |
| [unregisterCustomQueryHandler(name)](./puppeteer.puppeteer.unregistercustomqueryhandler.md) | <code>static</code> | Unregisters a custom query handler for a given name. |