How to limit the maximum data size of multipart upload?

[solzard]

I'm writing an API endpoint that receives an image file and returns the result of OCR over it.

I want to limit the maximum data size and raise the 413 error if an ongoing upload is too big.

Do you know how I can accomplish this?

@post("/detect")
async def detect(
    self,
    data: UploadFile = Body(
        media_type=RequestEncodingType.MULTI_PART,
    ),
) -> str:
    content: bytes = await data.read()
    roi: bytes = config.roi.extract(content)
    text: str = config.ocr.recognize_text(roi)
    return text