连接或快速中间件来修改response.body [英] Connect or Express middleware to modify the response.body

问题描述

我想要一个修改响应正文的中间件功能。

I would like to have a middleware function which modifies the response body.

这是一个快速服务器。

如下所示：

function modify(req, res, next){
  res.on('send', function(){
    res.body = res.body + "modified"
  });

  next();
}

express.use(modify);

我不明白要听什么事件。任何帮助或文档都将被欣赏。

I don't understand what event to listen for. Any help or documentation would be appreciate.

推荐答案

您不需要听任何事件。只需使它

You don't need to listen to any events. Just make it

function modify(req, res, next){
  res.body = res.body + "modified";

  next();
}

和使用在你使用路由器之后。在所有路由执行完毕后，您可以修改机身

And use it after you use the router. This way after all your routes have executed you can modify the body

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