Request: bytes() method
Baseline 2025Newly available
Since January 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
Note: This feature is available inWeb Workers.
Thebytes() method of theRequest interface reads the request body and returns it as a promise that resolves with aUint8Array.
Syntax
js
bytes()Parameters
None.
Return value
A promise that resolves with aUint8Array.
Exceptions
TypeErrorThrown for one of the following reasons:
- The request body isdisturbed or locked.
- There was an error decoding the body content (for example, because the
Content-Encodingheader is incorrect).
RangeErrorThrown if there is a problem creating the associated
ArrayBuffer(for example, if the data size is too large).
Examples
js
const myArray = new Uint8Array(10);const request = new Request("/myEndpoint", { method: "POST", body: myArray,});request.bytes().then((buffer) => { // do something with the buffer sent in the request});Specifications
| Specification |
|---|
| Fetch # dom-body-bytes |