@vercel/firewall

Programmatic rate limits

See our Firewall docs for detailed documentation of @vercel/firewall.

``ts
import { checkRateLimit } from '@vercel/firewall';

export async function POST() {
const { rateLimited } = await checkRateLimit('my-rate-limit-id');
if (rateLimited) {
return new Response('', {
status: 429,
});
}
// Implement logic guarded by rate limit
}
``

Vercel

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