node.js Http请求协助

作为一个新手，我很难弄明白为什么这不会发送消息。我相信这很简单，我只是很难弄明白

`/**
 * Responds to any HTTP request.
 *
 * @param {!express:Request} req HTTP request context.
 * @param {!express:Response} res HTTP response context.
 */
exports.helloWorld = (req, res) => {
  // let message = req.query.message || req.body.message || 'Hello World!';
  // res.status(200).send(message);
  // console.log(req.body.payload) ~ works fine
  var paylord = JSON.parse(req.body.payload);
  // console.log(paylord.type);

  var slackMessage = {
        "text": "Thanks for your request, we'll process it and get back to you.",
        "response_type": "ephemeral"
  }

  var options = {
  method: 'POST',
  contentType: 'application/json',
  payload: JSON.stringify(slackMessage)
};

res.status(200).send(paylord.request_url, options)
};

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您可以在控制台上共享日志输出吗？您还可以共享如何调用和读取此函数的结果吗？