How to remove post resubmission to node.js server?

Question

Node.js

.post((req, res) => {
  var data = req.body;
  news.create(data, function(err, news){
  if(err) throw(err);
    res.render('created-news', news);
  });
})

When the page is reloaded, the post is sent to the server again. PHP has header("Location: ".$_SERVER["HTTP_REFERER"]); How is this implemented in node.js?

Answer 1

req.headers contains all the request headers parsed into an object, where the key is the header itself reduced to lower case, and the value is its value.
That is, in your case, you can check req.headers.referer