is there a way to respond to a GET\POST request in a later time?

Question

is there a way to respond to a GET\POST request in a later time?

using Express (NodeJS), is there a way to save the details of a request so that the response will be done in a later time? (basically, leaving the request hangin for the response). without using setTimeout() or sleep or any other delay.

for example if this is my function:

function(req, res) {
    var data = req.body;
    setTimeout(function() {
        res.json(data);
    }, 3000);
}

is it possible to use (req, res) objects outside that function scope?

node.js
express
response
low-level
level

Answer 1

Yes, you can do it via setTimeout

function(req, res) {
    var data = req.body;
    setTimeout(function() {
        res.json(data);
    }, 3000);
}