[Home](./index.md) > [puppeteer](./puppeteer.md) > [BrowserFetcher](./puppeteer.browserfetcher.md) > [download](./puppeteer.browserfetcher.download.md)
## BrowserFetcher.download() method
Initiates a GET request to download the revision from the host.
Signature:
```typescript
download(revision: string, progressCallback?: (x: number, y: number) => void): Promise;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| revision | string | The revision to download. |
| progressCallback | (x: number, y: number) => void | A function that will be called with two arguments: How many bytes have been downloaded and the total number of bytes of the download. |
Returns:
Promise<BrowserFetcherRevisionInfo>
A promise with revision information when the revision is downloaded and extracted.
## Remarks
This method is affected by the current `product`.