कॉलबैक (वेबहुक)

curl https://api.zurelay.com/v1/videos \
  -H "Authorization: Bearer $ZURELAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.0",
    "prompt": "A fox running through fresh snow at dawn",
    "seconds": 5,
    "callback_url": "https://example.com/hooks/zurelay"
  }'

HTTP/1.1 202 Accepted
x-request-id: req_6fJd0kQ3pW9xT2mB7cZ1hR4u
{
  "id": "req_6fJd0kQ3pW9xT2mB7cZ1hR4u",
  "object": "image.generation",
  "model": "nano-banana-pro",
  "status": "in_progress",
  "created_at": 1791000000,
  "completed_at": null,
  "data": [],
  "url_expires_at": null,
  "cost": null,
  "error": null,
  "callback_url": "https://example.com/hooks/zurelay"
}

POST /hooks/zurelay HTTP/1.1
content-type: application/json
user-agent: Zurelay-Webhooks/1.0 (+https://zurelay.com/docs/webhooks)
webhook-id: msg_2c1f9e0b7a4d4f6e8b3a91c05d7e6f42
webhook-timestamp: 1791000094
webhook-signature: v1,K5oZfzN95Z9UVu1EsfQmfVNQhnkZ2pj9o9NDN/H/pI4=
{
  "type": "video.completed",
  "timestamp": "2026-10-03T03:21:34.000Z",
  "data": {
    "id": "video_Qm3v8Rk2Lx7Pa1Zt9Ws4Yn6B",
    "object": "video",
    "model": "seedance-2.0",
    "status": "completed",
    "progress": 100,
    "created_at": 1791000000,
    "completed_at": 1791000093,
    "expires_at": 1793592000,
    "seconds": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "size": "1280x720",
    "generate_audio": true,
    "url": "https://…/video_Qm3v8Rk2Lx7Pa1Zt9Ws4Yn6B.mp4?token=…",
    "url_expires_at": 1791086494,
    "cost": 0.45,
    "error": null,
    "callback_url": "https://example.com/hooks/zurelay"
  }
}

{
  "type": "image.completed",
  "timestamp": "2026-10-03T03:20:41.000Z",
  "data": {
    "id": "req_6fJd0kQ3pW9xT2mB7cZ1hR4u",
    "object": "image.generation",
    "model": "nano-banana-pro",
    "status": "completed",
    "created_at": 1791000000,
    "completed_at": 1791000041,
    "data": [{ "url": "https://…/req_6fJd0kQ3pW9xT2mB7cZ1hR4u-1.png?token=…" }],
    "url_expires_at": 1791086441,
    "cost": 0.07,
    "error": null,
    "callback_url": "https://example.com/hooks/zurelay"
  }
}

import os
from fastapi import FastAPI, HTTPException, Request
from standardwebhooks.webhooks import Webhook  # pip install standardwebhooks
webhook = Webhook(os.environ["ZURELAY_WEBHOOK_SECRET"])  # whsec_…
app = FastAPI()
@app.post("/hooks/zurelay")
async def zurelay_hook(request: Request):
    body = await request.body()  # the raw bytes: the signature covers exactly these
    try:
        event = webhook.verify(body, dict(request.headers))
    except Exception:
        raise HTTPException(status_code=400)
    handle(event)  # event["type"], event["data"]; keep it quick, or queue it
    return {"ok": True}