Asynchronous API File Upload in Dart

static sendAPIFiles({required String url,Map<String,String>? bodyData,List<XFile>? fileData,required String methodType}) async{
    var request = http.MultipartRequest('POST', Uri.parse(url));
    if(bodyData!=null){
      print("BODY DATA");
      print(bodyData.toString());
      request.fields.addAll(bodyData);
    }
    if (fileData != null) {
      fileData.forEach((element) async{
        var x=await http.MultipartFile.fromPath('images', element.path.toString());
        request.files.add(x);
      },);
      request.files.addAll(await Future.wait(
        fileData.map(
              (file) async => http.MultipartFile.fromPath('images', file.path.toString()),
        ),
      ));
    }
    print("request.files.length.toString()");
    print(request.files.length.toString());

    http.StreamedResponse response = await request.send();
    var responseBody=await response.stream.bytesToString();
    print("STATUS_CODE:::${response.statusCode}");
    print("URL=>${url}");
    print("BODY:::${responseBody}");
    Constant.StatusCode = response.statusCode.toString();
    if (response.statusCode == 200) {
      print(responseBody);
      return jsonDecode(responseBody);
    }
    else {
      print(response.reasonPhrase);
    }
  }