saveToDownloadsWeb static method

Future<bool> saveToDownloadsWeb(String content, String fileName, String extension)

Saves content to downloads on web by triggering a browser download

Implementation

static Future<bool> saveToDownloadsWeb(
  String content,
  String fileName,
  String extension,
) async {
  try {
    // Create the full filename with extension
    final String fullFileName = '$fileName.$extension';

    // Convert content to bytes
    final bytes = utf8.encode(content);

    // Create a Blob from the content
    final blob = web.Blob([bytes.toJS].toJS);

    // Create an object URL for the blob
    final url = web.URL.createObjectURL(blob);

    // Create a temporary anchor element
    final anchor = web.document.createElement('a') as web.HTMLAnchorElement
      ..href = url
      ..download = fullFileName
      ..style.display = 'none';

    // Add to document, click, and remove
    web.document.body?.appendChild(anchor);
    anchor.click();
    web.document.body?.removeChild(anchor);

    // Revoke the object URL to free up memory
    web.URL.revokeObjectURL(url);

    return true;
  } catch (e) {
    return false;
  }
}