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Document possible values for webhook target type #41884

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Document possible values for webhook target type
jothilakshmij Dec 16, 2025
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9 changes: 9 additions & 0 deletions content/webhooks/webhook-events-and-payloads.md
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Expand Up @@ -44,6 +44,15 @@ HTTP POST payloads that are delivered to your webhook's configured URL endpoint
* `X-Hub-Signature-256`: This header is sent if the webhook is configured with a `secret`. This is the HMAC hex digest of the request body, and is generated using the SHA-256 hash function and the `secret` as the HMAC `key`. For more information, see [AUTOTITLE](/webhooks/using-webhooks/securing-your-webhooks).
* `User-Agent`: This header will always have the prefix `GitHub-Hookshot/`.
* `X-GitHub-Hook-Installation-Target-Type`: The type of resource where the webhook was created.
Possible values:

| Value | Description |
| ----- | ----------- |
| `repository` | Webhooks created at the repository level |
| `organization` | Webhooks created at the organization level |
| `app` | Webhooks created by GitHub Apps |

This header can be used to distinguish between repository, organization, and GitHub App webhooks without relying solely on the webhook payload.
* `X-GitHub-Hook-Installation-Target-ID`: The unique identifier of the resource where the webhook was created.

To see what each header might look like in a webhook payload, see [Example webhook delivery](#example-webhook-delivery).
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