How to download a file with chopper?

[Simouche]

Can i download a file using chopper? if yes, how? i checked the docs and some issues, but i don't see anyone talking about it.

what i tried:

  @Get(path: "print/{reservationId}")
  Future<Response<File>> downloadInvoice(
    @Path("reservationId") int reservationId,
  );

and

  @Get(path: "print/{reservationId}")
  Future<Response> downloadInvoice(@Path("reservationId") int reservationId);

both return the same exception:

[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: Unhandled error FormatException: Missing extension byte (at offset 11) occurred 

any help is appreciated.

[JEuler]

Hmm, I think it is easier to just use the HTTP class from Dart / Flutter or the https://pub.dev/packages/flutter_downloader