@vettly/nextjs

Next.js integration for Vettly decision infrastructure. Policy-governed decisions for App Router, Pages Router, and Middleware.

Installation

npm install @vettly/nextjs

Quick Start - Middleware

Protect multiple routes at once:

// middleware.ts
import { moderateMiddleware } from '@vettly/nextjs'

export default moderateMiddleware({
  apiKey: process.env.VETTLY_API_KEY!,
  policy: 'community-safe',
  field: async (req) => {
    const body = await req.json()
    return body.content
  }
})

export const config = {
  matcher: '/api/comments/:path*'
}

Quick Start - Route Handler

Protect a single endpoint:

// app/api/comments/route.ts
import { moderateRoute } from '@vettly/nextjs'

export const POST = moderateRoute({
  apiKey: process.env.VETTLY_API_KEY!,
  policy: 'community-safe',
  field: 'content',
  handler: async (req) => {
    const body = await req.json()
    await db.comments.create({ data: body })
    return NextResponse.json({ success: true })
  }
})

Custom Block Handling

export const POST = moderateRoute({
  apiKey: process.env.VETTLY_API_KEY!,
  policy: 'community-safe',
  field: 'content',
  handler: async (req) => {
    // Content is safe
    return NextResponse.json({ success: true })
  },
  onBlock: (req, result) => {
    return NextResponse.json(
      { error: 'Content blocked', categories: result.categories },
      { status: 403 }
    )
  }
})

Links

• vettly.dev - Sign up
• docs.vettly.dev - Documentation