javascript - node.js - 想在同一个路由器 POST 中发送两个资源

Question

我的路由器设置如下:

questionRouter.post('/questionsReply', (req, res) => {
 twilioResp(req, res);
 var newResponse = new Response(req.body);
 newResponse.save((err, data) => {
  if (err) return handleDBError(err, res);
  res.status(200).json(data);
 });
 console.log('From: ' + req.body.From);
 console.log('Message: ' + req.body.Body);
});

我正在尝试将收到的响应保存到我的 mongodb 中。但是，我收到错误消息:发送后无法设置 header 。我很确定这是因为 twilioResp() 上面的函数。该代码是:

module.exports = exports = (req, res) => {
 var resp = new twilio.TwimlResponse();
 resp.message('Thank you! Your response "' + req.body.Body + '" has been saved!');
 res.writeHead(200, {'Content-Type': 'text/xml'});
 res.send(resp.toString());
};

此模块是对通过 Twilio REST API 收到的文本的自动响应。有没有办法在同一个 POST 请求中调用这两个？

Answer 1

Instead of res.send() you should use res.write() to send multiple responses.

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res.send() sends entire HTTP response to the client includes headers and content even it ends the response. And after that, you can't send anything.