static getRawBody (req, res) {
    SessionAPIs.#reqGetRawBody(req, (err, data) => {
      if (err) {
        console.trace(err);
        return res.end('Error');
      }

      res.setHeader('Content-Type', 'application/force-download');
      res.setHeader('content-disposition', contentDisposition(req.params.bodyName));

      return res.end(data);
    });
  }
GET - /api/session/:nodeName/:id/body/:bodyType/:bodyNum/:bodyName

Retrieves a file that was transferred in a session.
@name /session/:nodeName/:id/body/:bodyType/:bodyNum/:bodyName
@returns {file} file - The file in the session