--- 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