GridFS Download File location

Question

I'm trying to download file from database using GridFS in Java-Spring.

So far I made this and this work fine, In postman everything work, I can say that I can download file, but I dont know where is my file downloaded, can I put specific location for download or something like that? How even GridFS download works?

This is my code for downloading file:

Controller:

    @GetMapping("/downloadfile/{id}")
        public ResponseEntity<ByteArrayResource> download(@PathVariable String id) throws IOException {
            DocumentDto documentDto = documentService.downloadFile(id);
    
            return ResponseEntity.ok()
                    .contentType(MediaType.parseMediaType(documentDto.getType()))
                    .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + documentDto.getFileName() + "\"")
                    .body(new ByteArrayResource(documentDto.getFile()));
        }

And service:

public DocumentDto downloadFile(String id) throws IOException {

        GridFSFile gridFSFile = template.findOne(Query.query(Criteria.where("_id").is(id)));

        DocumentDto documentDto = new DocumentDto();

        if (gridFSFile != null && gridFSFile.getMetadata() != null) {
            documentDto.setFileName(gridFSFile.getFilename());

            documentDto.setType(gridFSFile.getMetadata().get("_contentType").toString());

            documentDto.setFile(IOUtils.toByteArray(operations.getResource(gridFSFile).getInputStream()));
        }

        return documentDto;
    }

Can I even do that? To put specific locations for saving files? Like on desktop or some directory on my C drive...