upload method

FileUploadTask upload(
  1. File file, [
  2. Map<String, String>? metadata
])

Starts an upload of file with optional metadata and returns the running FileUploadTask.

The file must exist. On success, id is set to the server-side ID.

Implementation

FileUploadTask upload(File file, [Map<String, String>? metadata]) {
  assert(file.existsSync());
  final FileUploadTask task = FileUploadTask._(this, file, metadata);
  task._start();
  return task;
}