text: module.exports = (totalSize, req, res) => {
      const range = req.headers['range'];
      if(!range) {
          return {
              code: 200
          }
      }
  
      const sizes = range.match(/bytes=(\d*)-(\d*)/)
      const end = sizes[2] || totalSize -1;
      const start = sizes[1] || totalSize - end;
  
      if(start > end || start < 0 || end > totalSize) {
          return {
              code: 200
          }
      }
  
      res.setHeader('Accept-Ranges', 'bytes');
      res.setHeader('Content-Range', `bytes ${start}-${end}/${totalSize}`);
      res.setHeader('Content-Length', end - start);
      return {
          code: 206,
          start: parseInt(start),
          end: parseInt(end)
      }
  };