downloadAndOpenFile function

Future<void> downloadAndOpenFile(
  1. String url,
  2. String filename
)

Downloads a file from the given URL in the web browser.

This is the platform-specific implementation for web platforms (when dart:html is available). It creates a temporary anchor element with the download attribute and programmatically clicks it to trigger the browser's download functionality.

Parameters:

  • url: The URL of the file to download
  • filename: The suggested filename for the download (browser may override this)

Note: The file will be downloaded by the browser, but won't automatically open as on mobile/desktop platforms. Users can open the downloaded file manually.

Implementation

Future<void> downloadAndOpenFile(String url, String filename) async {
  final anchor = document.createElement('a') as HTMLAnchorElement;
  anchor.href = url;
  anchor.download = filename;
  anchor.click();
}