---
title: useOnDisconnectSetMutation
---

Queue a `set` operation to run when the client disconnects.

## Usage

```tsx
import { ref } from "firebase/database";
import { useOnDisconnectSetMutation } from "@tanstack-query-firebase/react/database";

const statusRef = ref(database, `users/${uid}/status`);
const { mutate } = useOnDisconnectSetMutation(statusRef);
mutate("offline");
```