fetchLatestArchiveUrl method
The archive URL for a package's latest published version.
Implementation
Future<Uri> fetchLatestArchiveUrl(String packageName) async {
final uri = _baseUri.resolve('/api/packages/$packageName');
final body = await _getJson(uri);
final latest = body['latest'] as Map<String, dynamic>;
return Uri.parse(latest['archive_url'] as String);
}