Node.js Pipe a PDF API Response

So my scenario is a user clicks a button on a web app, this triggers a server side POST request to an internal (i.e non public) API sitting on another server in the same network, this should return a PDF to my server which will proxy (pipe) it back to the user.

I want to just proxy the PDF body content directly to the client without creating a tmp file.

I have this code which works using the npm request module but it does not feel right:

var pdfRequest = request(requestOptions);
  pdfRequest.on('error', function (err) {
    utils.sendErrorResponse(500, 'PROBLEM PIPING PDF DOWNLOAD: ' + err, res);
  });
  pdfRequest.on('response', function (resp) {
    if (resp.statusCode !== 200) {
      utils.sendErrorResponse(500, 'PROBLEM PIPING PDF DOWNLOAD: RAW RESP: ' + JSON.stringify(resp), res);
    } else if (resp.statusCode === 200) {
      pdfRequest.pipe(res);
    }
  });

Is the the correct way to pipe the PDF response?

Notes:

• I need to check the status code to conditionally handle errors, the payload for the POST is contained in the requestOptions (I know this part is all correct).
• I would like to keep using the request module
• I defiantly do not want to be creating any temp files
• If possible I would also like to modify the content disposition header to set a custom filename, i know how to do this without using pipes