index.md

---
title: "Request: arrayBuffer() method"
short-title: arrayBuffer()
slug: Web/API/Request/arrayBuffer
page-type: web-api-instance-method
browser-compat: api.Request.arrayBuffer
---

{{APIRef("Fetch API")}}{{AvailableInWorkers}}

The **`arrayBuffer()`** method of the {{domxref("Request")}} interface
reads the request body and returns it as a promise that resolves with an {{jsxref("ArrayBuffer")}}.

## Syntax

```js-nolint
arrayBuffer()
```

### Parameters

None.

### Return value

A promise that resolves with an {{jsxref("ArrayBuffer")}}.

## Examples

```js
constmyArray=newUint8Array(10);

constrequest=newRequest("/myEndpoint", {
 method:"POST",
 body: myArray,
});

request.arrayBuffer().then((buffer) => {
// do something with the buffer sent in the request
});
```

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}

## See also

- {{domxref("Response.arrayBuffer()")}}