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index.md
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---
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")}}
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
const myArray = new Uint8Array(10);
const request = new Request("/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()")}}