示例 1：AI 自动回复

function parseSignatureHeader(signatureHeader) {
  const result = {};
  for (const part of (signatureHeader || '').split(',')) {
    const [key, value] = part.split('=');
    if (key && value) {
      result[key.trim()] = value.trim();
    }
  }
  return result;
}

const input = $input.first().json;
const headers = input.headers || {};
const body = input.body;

const signatureHeader = headers['ycloud-signature'] ;
const parsed = parseSignatureHeader(signatureHeader);

const timestamp = parsed.t;
const receivedSignature = parsed.s;

const payload =
  body === undefined || body === null
    ? ''
    : typeof body === 'string'
      ? body
      : JSON.stringify(body);

const signedPayload = `${timestamp}.${payload}`;

return [
  {
    json: {
      ...input,
      timestamp,
      receivedSignature,
      payload,
      signedPayload,
      signatureHeader,

    }
  }
];