जनरेशन पूरा होते ही जान जाइए

import { Flixly } from "@flixly/sdk";

// In your webhook handler — Express, Hono, Next.js, etc.
export async function POST(req) {
  const rawBody = await req.text();   // MUST be raw — re-stringifying breaks the signature
  const signature = req.headers.get("x-flixly-signature");
  const timestamp = req.headers.get("x-flixly-timestamp");

  const valid = await Flixly.verifyWebhookSignature({
    secret:    process.env.FLIXLY_WEBHOOK_SECRET,
    timestamp,
    signature,
    body:      rawBody,
    tolerance: 300,   // optional — defaults to 300s replay window
  });

  if (!valid) {
    return new Response("invalid signature", { status: 401 });
  }

  const event = JSON.parse(rawBody);
  // event.event === "generation.completed" | "generation.failed"
  // event.id, event.status, event.output_url, event.credits_charged, ...
  await handleGenerationEvent(event);
  return new Response("ok");
}