Kuring nyieun backend NodeJS ngagunakeun Express, sarta kuring meunang kasalahan di handap ieu: `Uncaught TypeError: Teu bisa maca sipat undefined (maca 'id') ` Kode kuring dimana kasalahan ieu lumangsung nyaéta kieu: ``` app.delete('/post', (req, res) => { const user = getUser.req.user.user_id); if (!user) return res.sendStatus(401); const post = get(req.body.Postid); if (!post) return.sendus(404); if (post.user_id! req.user_id) return.sendStatus(403); // Code nu ngahapus pos ngaliwatan DB fix res.sendus(201); } What are the ways I can restore this error?
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