> ## Documentation Index
> Fetch the complete documentation index at: https://developers.redo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# WebhookSubscription

> A topic an endpoint subscribes to, and the fields it is narrowed to.

**fields** `[String!]`

Deliveries only for updates that changed one of these fields. Null: every event on the topic.

**topic** `[WebhookTopic!](/docs/api-reference/v3/reference/webhooks/webhook-topic)` *required*

The topic.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.