# webhook.received

> The ByDomu webhook.received event (Call received from another tool): when it fires, how to subscribe, its fields and the payload delivered by webhook.


Call received from another tool

Object · webhook Instant

## When it fires

Another tool called an automation’s incoming webhook. webhook carries the body, the safe headers and the query.

Instantly, when it happens in ByDomu: from the app, the API, Noa, an automation or an integration. `actor.kind` tells you who: USER, NOA, SYSTEM, API, AUTOMATION or INTEGRATION.

## Subscribe with

- `webhook.received` Only this event
- `webhook.*` Every event of Call from another tool
- `*` The whole catalog

## Fields it carries

paths for filters and templates

`webhook.hookId` Link id

`webhook.body` Content received

`webhook.headers` Headers received

`webhook.query` Address parameters

Up to 5 attempts (0 s, 5 s, 30 s, 2 min and 10 min) on network errors, 429 or 5xx. Reply 2xx in under 10 s.

Payload:

```
{
  "event": "webhook.received",
  "id": "5f3a0c1e-7d2b-4f7e-9a51-0b6c1d2e3f40",
  "type": "webhook.received",
  "timestamp": "2026-09-22T14:30:00.000Z",
  "organizationId": "clx1org001",
  "actor": {
    "kind": "INTEGRATION",
    "userId": null
  },
  "data": {
    "webhook": {
      "hookId": "hk_EXAMPLE0000000000",
      "automationId": "clx1aut001",
      "body": {
        "nombre": "Laura Restrepo",
        "inmueble": "P-0042"
      },
      "headers": {
        "content-type": "application/json",
        "user-agent": "Zapier"
      },
      "query": {},
      "receivedAt": "2026-09-22T14:30:00.000Z"
    }
  }
}
```

Headers:

```
X-Domu-Event: webhook.received
X-Domu-Signature: t=1790610130,v1=9c1e…
User-Agent: Domu-Webhooks/2
```

Verify signature:

```
import { createHmac, timingSafeEqual } from "node:crypto";

// header = X-Domu-Signature: t=<timestamp>,v1=<hmac>
function verifyWebhook(rawBody, header, secret, toleranceSec = 300) {
  const parts = Object.fromEntries(header.split(",").map((p) => p.split("=")));
  const timestamp = Number(parts.t);
  if (!timestamp || !parts.v1) return false;
  if (Math.abs(Date.now() / 1000 - timestamp) > toleranceSec) return false;
  const expected = createHmac("sha256", secret)
    .update(`${timestamp}.${rawBody}`)
    .digest("hex");
  const a = Buffer.from(expected);
  const b = Buffer.from(parts.v1);
  return a.length === b.length && timingSafeEqual(a, b);
}
```

**Get it with your test data** GET /v1/webhooks/sample/webhook.received

[Try it](https://developers.bydomu.com/en/referencia/get-webhook-sample?probar=1&type=webhook.received)