class HttpError extends Error { constructor(code, message){ super(message); this.name = this.constructor.name; this.code = code; Error.captureStackTrace(this, this.constructor); } } const catchError = (err, req, res, next)=>{ if(err instanceof HttpError){ return res.status(err.code).json({ error: { code: err.code, message: err.message } }); } console.error(err); return res.status(500).json({ error: { code: 500, message: "Internal server error" } }); } export { HttpError, catchError }