The developer platformfor file uploads

// app/api/upload/route.ts
import { createUploadKitHandler } from '@uploadkitdev/next'

const router = createUploadKitHandler({
  imageUploader: f({ image: { maxFileSize: '4MB' } })
    .middleware(async ({ req }) => {
      const user = await auth(req)
      return { userId: user.id }
    })
    .onUploadComplete(async ({ metadata, file }) => {
      await db.files.create({ userId: metadata.userId, url: file.url })
    }),
})

export const { GET, POST } = router