# Webhookura

Sode polling, de jekh `webhook_url` ko run. Kana o mangipen avel ko agoruno status (`succeeded`, `failed` vaj `canceled`), bičhalas jekh sinjalizime `POST` ko URL.

```bash
curl -X POST "https://api.doitong.com/v1/run/{model_id}?webhook_url=https://example.com/hooks/doitong" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "..."}'
```

> [!NOTE]
> O URL trubul te ovel publiku `https://`. Privatno, lokalno thaj na-HTTPS adresa si na-lijarde le `422 invalid_webhook_url`-sa anglal so vareso te charge-ol.

## O event

```http Request headers
POST /hooks/doitong HTTP/1.1
Content-Type: application/json
User-Agent: Doitong-Webhooks/1
Doitong-Request-Id: req_8k2m4q7x1z9c3v5b6n0p2r4t
Doitong-Signature: t=1760961609,v1=5f1c0d6e2b…
```

```json Request body
{
  "id": "evt_8k2m4q7x1z9c3v5b6n0p2r4t_succeeded",
  "object": "event",
  "type": "request.succeeded",
  "created_at": "2026-10-20T12:00:09Z",
  "data": {
    "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "object": "request",
    "status": "succeeded",
    "outputs": [ { "type": "video", "url": "https://content.doitong.com/dev-api/…/0-output.mp4" } ]
  }
}
```

- `type` si `request.succeeded`, `request.failed` vaj `request.canceled`.
- `data` si sa o mangipenosko objekto, exaktno so `GET /requests/{id}` del.
- `id` si stabilno pентru jekh mangipen thaj lesko agoruno status. Labar les te na primis tu jekh delivery so već obradas.

## Deliveryura thaj retryura

Phen palem le savo `2xx` status ande 10 sekunda. Savo aver (vaj timeout) kerel retry: dži 6 akharipena savorre, palal 30 sekundura, 2 minuta, 10 minuta, 1 minuta thaj 6 minuta. Na keres sigo buća anglal te phenes palem; ker len palal.

## Proveri o sinjal

Sakone klidines si lesko korkori sinjalizipnako sekretо. Ginav les jekhvar katar `GET https://api.doitong.com/v1/account` (`webhook_signing_secret`, startil le `whsec_`-sa) thaj arakh les paš o klidin.

O `Doitong-Signature` header si `t=<unix time>,v1=<signature>`, kaj o sinjal si hex HMAC-SHA256 e `"<t>.<raw request body>"`-esko, tiro sekretо sar klidin. Te proveris:

1. Le sa raw body bytes exaktno sar resle (anglal JSON parsing).
2. Ginav HMAC-SHA256 e `t + "." + body`-esko le tire sekretosa, sar lowercase hex.
3. Sravnis les le `v1`-sa constant time-esa.
4. Na prihvatin o event kana `t` si maj dur katar 5 minuta tire reloresko (replay protection).

Jekh pherdo receiver ande Node.js (Express) thaj Python (Flask):

```javascript Node.js · Express
import crypto from "node:crypto";
import express from "express";

const SECRET = process.env.DOITONG_WEBHOOK_SECRET; // whsec_...
const app = express();

app.post("/hooks/doitong", express.raw({ type: "application/json" }), (req, res) => {
  const header = req.get("Doitong-Signature") || "";
  const parts = Object.fromEntries(header.split(",").map((p) => p.split("=", 2)));
  const t = Number(parts.t);
  const expected = crypto.createHmac("sha256", SECRET).update(t + "." + req.body).digest("hex");
  const given = Buffer.from(parts.v1 || "", "utf8");
  const valid =
    given.length === expected.length &&
    crypto.timingSafeEqual(given, Buffer.from(expected, "utf8")) &&
    Math.abs(Date.now() / 1000 - t) < 300;
  if (!valid) return res.status(400).send("bad signature");

  const event = JSON.parse(req.body);
  if (event.type === "request.succeeded") {
    console.log(event.data.id, event.data.outputs.map((o) => o.url));
  }
  res.sendStatus(204);
});
```
```python Python · Flask
import hashlib
import hmac
import json
import os
import time

from flask import Flask, abort, request

SECRET = os.environ["DOITONG_WEBHOOK_SECRET"].encode()  # whsec_...
app = Flask(__name__)


@app.post("/hooks/doitong")
def doitong_hook():
    body = request.get_data()  # raw bytes
    parts = dict(p.split("=", 1) for p in request.headers.get("Doitong-Signature", "").split(",") if "=" in p)
    t = parts.get("t", "0")
    expected = hmac.new(SECRET, t.encode() + b"." + body, hashlib.sha256).hexdigest()
    if not hmac.compare_digest(expected, parts.get("v1", "")) or abs(time.time() - int(t)) > 300:
        abort(400)

    event = json.loads(body)
    if event["type"] == "request.succeeded":
        print(event["data"]["id"], [o["url"] for o in event["data"]["outputs"]])
    return "", 204
```

## Sugeratura

> [!TIP]
> Webhookura si jekh lokharelipen, na o źangluno them: kana na reses jekh, `GET /requests/{id}` si sajekh le agorune status-esa.

- Dava palem sigo thaj queue-isar tiro korkoro procesiripen.
- O sekreto si lesko API klidines so startisardas o run. Keys ande aver servisa si le aver sekretоnça.