CODE EXAMPLE FOR SHELL

Upload multiple images in flutter by multipart

Future uploadmultipleimage(List images) async {
  var uri = Uri.parse("");
  http.MultipartRequest request = new http.MultipartRequest('POST', uri);
  request.headers[''] = '';
  request.fields['user_id'] = '10';
  request.fields['post_details'] = 'dfsfdsfsd';
  //multipartFile = new http.MultipartFile("imagefile", stream, length, filename: basename(imageFile.path));
  List<MultipartFile> newList = new List<MultipartFile>();
  for (int i = 0; i < images.length; i++) {
    File imageFile = File(images[i].toString());
    var stream =
        new http.ByteStream(DelegatingStream.typed(imageFile.openRead()));
    var length = await imageFile.length();
    var multipartFile = new http.MultipartFile("imagefile", stream, length,
        filename: basename(imageFile.path));
    newList.add(multipartFile);
  }
  request.files.addAll(newList);
  var response = await request.send();
  if (response.statusCode == 200) {
    print("Image Uploaded");
  } else {
    print("Upload Failed");
  }
  response.stream.transform(utf8.decoder).listen((value) {
    print(value);
  });
}