Request: arrayBuffer() method

{{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

arrayBuffer()

Parameters

None.

Return value

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

Exceptions

• {{jsxref("TypeError")}}
  • : Thrown for one of the following reasons:
    • The request body is disturbed or locked.
    • There was an error decoding the body content (for example, because the {{httpheader("Content-Encoding")}} header is incorrect).
• {{jsxref("RangeError")}}
  • : Thrown if there is a problem creating the associated ArrayBuffer (for example, if the data size is too large).

Examples

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()")}}