function handleError(err, req, res) {
    switch (err.name) {
      case 'NotFoundError':
        res.send(err, 404);
        break;
      default:
        res.send(err, 500);
    }
  }
function handleError(err, req, res) {
    switch (err.name) {
      case 'NotFoundError':
        res.send(err, 404);
        break;
      default:
        res.send(err, 500);
    }
  }
function handleError ( err , req , res ) { switch ( err . name ) { case 'NotFoundError' : res . send ( err , 404 ) ; break ; default : res . send ( err , 500 ) ; } }
Utility for handling errors
Utility for handling errors