puppeteer/website/versioned_docs/version-21.4.0/api/puppeteer.registercustomqueryhandler.md
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---
sidebar_label: registerCustomQueryHandler
---
# registerCustomQueryHandler() function
> Warning: This API is now obsolete.
>
> Import [Puppeteer](./puppeteer.puppeteer.md) and use the static method [Puppeteer.registerCustomQueryHandler()](./puppeteer.puppeteer.registercustomqueryhandler.md)
#### Signature:
```typescript
export declare function registerCustomQueryHandler(
name: string,
handler: CustomQueryHandler
): void;
```
## Parameters
| Parameter | Type | Description |
| --------- | ------------------------------------------------------- | ----------- |
| name | string | |
| handler | [CustomQueryHandler](./puppeteer.customqueryhandler.md) | |
**Returns:**
void