@PostMapping(produces = MediaType.TEXT_EVENT_STREAM_VALUE)
    public ResponseBodyEmitter uploadFile(@NotNull @RequestParam("file") MultipartFile file,
            @NotNull @RequestParam UploadTypeEnum uploadTypeEnum) {
        ResponseBodyEmitter emitter = new ResponseBodyEmitter(HALF_HOUR);
        uploadFileService.uploadFile(emitter, file, uploadTypeEnum);
        return emitter;
    }

    @Async
    public void uploadFile(ResponseBodyEmitter emitter, MultipartFile file, UploadTypeEnum uploadTypeEnum) {
       service1.method(emmiter, ...);
       service2.method(emmiter, ...);
       service3.method(emmiter, ...);
    }