# Temukan bug-nya: Vue.js / Nuxt.js

> Satu potongan kode. Temukan bug-nya, atau buktikan tidak ada.

Tantangan harian: 2026-08-19 (UTC) · Mid-Level

```typescript
import jwt from 'jsonwebtoken'

export default defineEventHandler(async (event) => {
  const { refreshToken } = await readBody(event)

  const decoded = jwt.verify(refreshToken, process.env.REFRESH_SECRET!) as { userId: string; iat: number }

  if (Date.now() - decoded.iat * 1000 > 2592000000) {
    throw createError({ statusCode: 401, message: 'Refresh token expired' })
  }

  const newToken = jwt.sign(
    { userId: decoded.userId },
    process.env.JWT_SECRET!,
    { expiresIn: 3600 }
  )

  return { token: newToken }
})
```

## Keputusanmu

- Celah keamanan
- Bug logika
- Gaya kode
- Tidak ada masalah

Satu percobaan per hari. Jawaban muncul langsung setelahnya.

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