# Set or rotate a webhook secret

`POST https://api.versionseven.ai/v1/campaigns/{campaign_id}/webhooks/{webhook_id}/secret`

Sets or replaces the secret used to sign this webhook's deliveries. Each delivery then carries `X-Signature-256: sha256=<hex>`, an HMAC-SHA256 of the exact request body keyed with the secret.

Send your own `secret`, or leave it out and one is generated. Use this to add signing to a webhook created without a secret, or to replace a secret you think is compromised.

> **Warning:** A generated `secret` appears in this response and nowhere else. Store it before you discard the response.

- Required scope: `campaigns:write`

## Request

**cURL**

```bash
curl -X POST "https://api.versionseven.ai/v1/campaigns/550e8400-e29b-41d4-a716-446655440000/webhooks/3a94d596-645d-47ff-a032-c70b299fc8f3/secret" \
  -H "Authorization: Bearer $VICTORIA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'
```

**Node.js**

```javascript
const response = await fetch("https://api.versionseven.ai/v1/campaigns/550e8400-e29b-41d4-a716-446655440000/webhooks/3a94d596-645d-47ff-a032-c70b299fc8f3/secret", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.VICTORIA_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({}),
});

const data = await response.json();
```

**Python**

```python
import os

import requests

response = requests.post(
    "https://api.versionseven.ai/v1/campaigns/550e8400-e29b-41d4-a716-446655440000/webhooks/3a94d596-645d-47ff-a032-c70b299fc8f3/secret",
    headers={
        "Authorization": f"Bearer {os.environ['VICTORIA_API_KEY']}",
    },
    json={},
)
data = response.json()
```

## Headers

- `Authorization` (string, required): `Bearer` followed by a space and your API key, for example `Bearer vk_…`.

## Path parameters

- `campaign_id` (string · uuid, required): ID of the campaign.
- `webhook_id` (string · uuid, required): ID of the webhook.

## Request body

- `secret` (string or null, optional, at least 16 characters, at most 2,000 characters): Your own signing key, so both sides hold the same value. Omit it and one is generated and returned once.

## Response

### `200`

```json
{
  "webhook_id": "3a94d596-645d-47ff-a032-c70b299fc8f3",
  "message": "Webhook signing secret rotated",
  "secret": "string",
  "success": true
}
```

- `webhook_id` (string, required): ID of the webhook whose secret was rotated
- `message` (string, optional, default `"Webhook signing secret rotated"`)
- `secret` (string or null, optional): Present only when the secret was generated server-side, and only in this response: store it now, it cannot be retrieved again. Absent when you supplied your own.
- `success` (boolean, optional, default `true`)

## Errors

Errors share one JSON body: `success`, `error`, `message`, optional `details`, and `request_id`. For example:

```json
{
  "success": false,
  "error": "UNAUTHORIZED",
  "message": "Invalid or inactive API key",
  "request_id": "734d11a1-54d4-414c-9e8d-4e1ada977db4"
}
```

| Status | Code | Meaning |
| --- | --- | --- |
| 400 | `VALIDATION_ERROR` | The request didn't match the endpoint's schema: a missing or malformed field, a bad query parameter, or a value out of range. `details.errors` lists each failing field with its `field`, `message` and `type`. |
| 401 | `UNAUTHORIZED` | The `Authorization` header is missing or malformed, or the API key is unknown or has been deactivated. |
| 401 | `API_KEY_EXPIRED` | The API key is past its expiry date. Create a new key in the Victoria AI app. |
| 403 | `INSUFFICIENT_SCOPE` | The API key doesn't have the scope this endpoint requires, such as `leads:write`. |
| 403 | `ORGANIZATION_DEACTIVATED` | The organization that owns this API key has been deactivated. |
| 404 | `CAMPAIGN_NOT_FOUND` | No campaign with this ID exists in your organization. |
| 404 | `WEBHOOK_NOT_FOUND` | No webhook with this ID exists on the campaign. |
| 404 | `NOT_FOUND` | No endpoint matches the path. A resource ID in the path that isn't a valid UUID also answers `NOT_FOUND`. |
| 413 | `PAYLOAD_TOO_LARGE` | The request body is larger than 1 MB. |
| 429 | `RATE_LIMITED` | Too many requests for this API key: more than 100 a minute to one endpoint, or 600 a minute in total. Retry after the number of seconds in the `Retry-After` header. See [Rate limits](https://docs.versionseven.ai/guides/rate-limits). |
| 500 | `INTERNAL_ERROR` | Something failed on our side. The response never includes internal details; quote its `request_id` when you contact support. |
| 503 | `UPSTREAM_TIMEOUT` | A service the API depends on timed out. The request is safe to retry. |
| 503 | `AUTH_UNAVAILABLE` | The API key couldn't be checked because the authentication service was unavailable. The request is safe to retry. |

## Response headers

| Header | Description |
| --- | --- |
| `X-Request-ID` | Correlation ID for the request, also returned as `request_id` in error bodies. Send your own `X-Request-ID`, up to 128 letters, digits, `.`, `_`, `:` or `-`, and it's used instead. |
| `RateLimit-Limit` | Requests allowed to this endpoint per minute. |
| `RateLimit-Remaining` | Requests you can still send to this endpoint right now. |
| `RateLimit-Reset` | Seconds until the endpoint's full limit is available again. |
| `Retry-After` | On a `429`: seconds to wait before retrying. |