---
title: usePushMutation
---

Append a child with an auto-generated key to a list.

## Usage

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

const messagesRef = ref(database, "messages");
const { mutate, data: newRef } = usePushMutation(messagesRef);
mutate({ text: "Hello" });
```