Creating a expressjs middleware that accepts parameters

Question

I am trying to create a middleware that can accept parameters. How can this be done?

example

app.get(\'/hasToBeAdmin\', HasRole(\'Admin\'), function(         


        

Answer 1

Alternatively if you do not have too many cases or if role is NOT a string:

function HasRole(role) {
  return function (req, res, next) {
    if (role !== req.user.role) res.redirect(/* ... */);
    else next();
  }
}

var middlware_hasRoleAdmin = HasRole('admin'); // define router only once

app.get('/hasToBeAdmin', middlware_hasRoleAdmin, function (req, res) {

})