3aee641c3d
🤖 I have created a release *beep* *boop* --- ## [18.1.0](https://github.com/puppeteer/puppeteer/compare/v18.0.5...v18.1.0) (2022-10-05) ### Features * **chromium:** roll to Chromium 107.0.5296.0 (r1045629) ([#9039](https://github.com/puppeteer/puppeteer/issues/9039)) ([022fbde](022fbde85e)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
47 lines
2.8 KiB
Markdown
47 lines
2.8 KiB
Markdown
---
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sidebar_label: BrowserFetcher
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---
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# BrowserFetcher class
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BrowserFetcher can download and manage different versions of Chromium and Firefox.
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**Signature:**
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```typescript
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export declare class BrowserFetcher
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```
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## Remarks
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BrowserFetcher operates on revision strings that specify a precise version of Chromium, e.g. `"533271"`. Revision strings can be obtained from [omahaproxy.appspot.com](http://omahaproxy.appspot.com/). In the Firefox case, BrowserFetcher downloads Firefox Nightly and operates on version numbers such as `"75"`.
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The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `BrowserFetcher` class.
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## Example
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An example of using BrowserFetcher to download a specific version of Chromium and running Puppeteer against it:
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```ts
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const browserFetcher = puppeteer.createBrowserFetcher();
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const revisionInfo = await browserFetcher.download('533271');
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const browser = await puppeteer.launch({
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executablePath: revisionInfo.executablePath,
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});
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```
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**NOTE** BrowserFetcher is not designed to work concurrently with other instances of BrowserFetcher that share the same downloads directory.
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## Methods
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| Method | Modifiers | Description |
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| ------------------------------------------------------------------------------ | --------- | --------------------------------------------------------------- |
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| [canDownload(revision)](./puppeteer.browserfetcher.candownload.md) | | Initiates a HEAD request to check if the revision is available. |
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| [download(revision, progressCallback)](./puppeteer.browserfetcher.download.md) | | Initiates a GET request to download the revision from the host. |
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| [host()](./puppeteer.browserfetcher.host.md) | | |
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| [localRevisions()](./puppeteer.browserfetcher.localrevisions.md) | | |
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| [platform()](./puppeteer.browserfetcher.platform.md) | | |
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| [product()](./puppeteer.browserfetcher.product.md) | | |
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| [remove(revision)](./puppeteer.browserfetcher.remove.md) | | |
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| [revisionInfo(revision)](./puppeteer.browserfetcher.revisioninfo.md) | | |
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