uploadAppend method

Future<void> uploadAppend({ required String mediaId, required List<int> media, required int segmentIndex, })

The APPEND command is used to upload a chunk (consecutive byte range) of the media file. For example, a 3 MB file could be split into 3 chunks of size 1 MB, and uploaded using 3 APPEND command requests. After the entire file is uploaded, the next step is to call the FINALIZE command.

mediaId: The UploadInit.mediaIdString returned from the INIT command.

media: The raw binary file content being uploaded. It must be <= 5 MB.

segmentIndex: An ordered index of file chunk. It must be between 0-999 inclusive. The first segment has index 0, second segment has index 1, and so on.

See https://developer.twitter.com/en/docs/media/upload-media/api-reference/post-media-upload-append.

Implementation

Future<void> uploadAppend({
  required String mediaId,
  required List<int> media,
  required int segmentIndex,
}) async {
  final params = <String, String>{}
    ..addParameter('command', 'APPEND')
    ..addParameter('media_id', mediaId)
    ..addParameter('segment_index', segmentIndex);

  await client.multipartRequest(
    Uri.https('upload.twitter.com', '1.1/media/upload.json', params),
    files: [MultipartFile.fromBytes('media', media)],
  );
}