Nodejs global variable

Question

I have a variable called username in a post route within my node.js server-side code (accessed through a form submission) and I would like to use this same variable in another post route.

app.post("/login", function(req, res) {
    var username = req.body.username;
    ...
});

//Another app.post route

Is there any way I could do this?

Answer 1

Best solution is that first you initialize global variable in express app

app.use(function (req, res, next) {
    res.locals.username = "";
    next();
});

set this variable in post route

app.post("/login", function(req, res) {
 global.username = req.body.username;
});