[MDN says](https://developer.mozilla.org/en-US/docs/Web/API/Request) of `request.body` > A simple getter used to expose a ReadableStream of the body contents. In particular, I would expect `const { value, done } = await request.body.getReader().read()` to work. See [ReadableStream](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream) for more info.