Function fileFromByteField

packages/plugins/openapi/src/sdk/invoke.ts:541–565

(body: unknown, hint: OperationFileHint)

  Option.getOrElse(hint.encoding, () => "base64");

const fileFromByteField = (body: unknown, hint: OperationFileHint): ToolFileValue | null => {
  if (typeof body !== "object" || body === null || Array.isArray(body)) return null;
  const record = body as Record<string, unknown>;
  const dataField = readHintString(hint.dataField, "data");
  const rawData = record[dataField];
  if (typeof rawData !== "string") return null;

  const data = normalizeBase64(rawData, readHintEncoding(hint));
  const sizeField = Option.getOrUndefined(hint.sizeField);
  const byteLength =
    sizeField && typeof record[sizeField] === "number"
      ? record[sizeField]
      : byteLengthFromBase64(data);
  const hintedMimeType = readHintMimeType(hint, "application/octet-stream");

  return {
    _tag: "ToolFile",
    mimeType: isGenericMimeType(hintedMimeType)
      ? (sniffMimeTypeFromBase64(data) ?? hintedMimeType)
      : hintedMimeType,
    encoding: "base64",
    data,
    byteLength,
  };
};

const fileFromBinaryBytes = (
  bytes: Uint8Array,