FileMessageParams.withFile constructor Null safety

Implementation

FileMessageParams.withFile(File file, {String? name}) {
  if (kIsWeb) {
    throw SBError(
      message: "`FileMessageParams.withFile` is not supported for web",
    );
  }
  String fileType;

  if (lookupMimeType(file.path) == null) {
    switch (getFileExtension(file.path)) {
      case '.HEIC':
        fileType = 'imgae/heic';
        break;
      case '.HEIF':
        fileType = 'imgae/heif';
        break;
      default:
        throw SBError(message: 'Unknown File Type');
    }
  } else {
    fileType = lookupMimeType(file.path)!;
  }
  uploadFile = FileInfo.fromData(
    name: name ?? 'my_file',
    file: file,
    mimeType: fileType,
  );
}