sendVideoNote method

Future<Message> sendVideoNote(dynamic chat_id, dynamic video_note, { int? duration, int? length, dynamic thumb, bool? disable_notification, int? reply_to_message_id, bool? allow_sending_without_reply, ReplyMarkup? reply_markup, })

Use this method to send video messages

On success, the sent Message is returned.

As of v.4.0, Telegram clients support rounded square mp4 videos of up to 1 minute long.

https://core.telegram.org/bots/api#sendvideonote

Implementation

Future<Message> sendVideoNote(dynamic chat_id, dynamic video_note,
    {int? duration,
    int? length,
    dynamic thumb,
    bool? disable_notification,
    int? reply_to_message_id,
    bool? allow_sending_without_reply,
    ReplyMarkup? reply_markup}) async {
  if (chat_id is! String && chat_id is! int) {
    return Future.error(TelegramException(
        'Attribute \'chat_id\' can only be either type of String or int'));
  }
  var requestUrl = _apiUri('sendVideoNote');
  var body = <String, dynamic>{
    'chat_id': chat_id,
    'duration': duration,
    'length': length,
    'disable_notification': disable_notification,
    'reply_to_message_id': reply_to_message_id,
    'allow_sending_without_reply': allow_sending_without_reply,
    'reply_markup': reply_markup == null ? null : jsonEncode(reply_markup),
  };

  var multiPartFiles = <MultipartFile>[];

  if (video_note is io.File) {
    multiPartFiles.add(HttpClient.toMultiPartFile(video_note, 'video_note'));
  } else if (video_note is String) {
    body.addAll({'video_note': video_note});
  } else {
    return Future.error(TelegramException(
        'Attribute \'video_note\' can only be either io.File or String (Telegram file_id or image url)'));
  }

  if (thumb != null) {
    if (thumb is io.File) {
      multiPartFiles.add(HttpClient.toMultiPartFile(thumb, 'thumb'));
    } else if (thumb is String) {
      body.addAll({'thumb': thumb});
    } else {
      return Future.error(TelegramException(
          'Attribute \'thumb\' can only be either io.File or String (Telegram file_id or image url)'));
    }
  }

  return multiPartFiles.isEmpty
      ? Message.fromJson(await HttpClient.httpPost(requestUrl, body: body))
      : Message.fromJson(await HttpClient.httpMultipartPost(
          requestUrl, multiPartFiles,
          body: body));
}