Provide a factory to write a message to send by gmail api.
Gmail sending a message sample:
import 'package:gmail_message_factory/gmail_message_factory.dart';
main() {
var mf =
new MessageFactory.UTF8("me", "to@example.com", "件名", "本文");
var message = new Message();
message.raw = mf.toRawMessage();
api.users.messages.send(message, "me");
}
Please file feature requests and bugs at the issue tracker.