mux_client.dart

Future<VideoData> storeVideo({String videoUrl}) async {
  Response response;

  try {
    response = await _dio.post(
      "/assets",
      data: {
        "videoUrl": videoUrl,
      },
    );
  } catch (e) {
    print('Error starting build: $e');
    throw Exception('Failed to store video on MUX');
  }

  if (response.statusCode == 200) {
    VideoData videoData = VideoData.fromJson(response.data);

    String status = videoData.data.status;

    while (status == 'preparing') {
      print('processing...');
      await Future.delayed(Duration(seconds: 1));
      videoData = await checkPostStatus(videoId: videoData.data.id);
      status = videoData.data.status;
    }

    return videoData;
  }

  return null;
}