...where

2019-06-22 20:53:31.622515
[SEVERE] aqueduct: GET /videoData/56 22285ms 500 {user-agent : Dart/2.3 (dart:io)\naccept-encoding : gzip\ncontent-length : 0\nhost : 10.0.2.2:8888\nauthorization : Bearer 8VlIFnNrPF0LbedAmE2pZA1Sc8RdjU8K\n}  NoSuchMethodError: The getter 'length' was called on null.
Receiver: null
Tried calling: length


this is the offending code:


..route('/videoUpload')
          .link(() => Authorizer.bearer(authServer))
          .linkFunction((Request request) async {
        final transformer = MimeMultipartTransformer(
            request.raw.headers.contentType.parameters["boundary"]);
        final parts = await transformer
            .bind(Stream.fromIterable([await request.body.decode<List<int>>()]))
            .toList();

        parts.forEach((MimeMultipart part) {
          part.listen((List<int> data) async {
            await File(
                    'uploads/${request.raw.headers.value('userID')}_${request.raw.headers.value('startTime')}.mp4')
                .writeAsBytes(data);
          });
        });

        return Response.ok('cool');
      });