Function readJsonBodyWithLimit

apps/sim/lib/api/server/validation.ts:106–119

* Reads the JSON body while enforcing a byte cap. The body is read through a * size-limited stream so chunked/streamed bodies are bounded even when the * `content-length` header is absent or lies about the true size. When no * readable stream is available (e.g. a mocked request) the content-lengt

(request: Request, maxBytes: number)

 * "UTF-8 decode" behavior of `request.json()`.
 */
async function readJsonBodyWithLimit(request: Request, maxBytes: number): Promise<unknown> {
  assertContentLengthWithinLimit(request.headers, maxBytes, REQUEST_BODY_LABEL)

  const stream = request.body
  if (!stream) {
    return request.json()
  }

  const buffer = await readStreamToBufferWithLimit(stream, {
    maxBytes,
    label: REQUEST_BODY_LABEL,
  })
  return JSON.parse(new TextDecoder().decode(buffer))
}

export async function parseJsonBody(
  request: Request,