MEAN Cookbook

How to do it...

Perform the following steps to create custom Express middleware for authentication:

1. First, let's create a new middleware file called /middleware/auth.js. Separating routes from middleware can be useful if you want to import middleware into specific routes configuration. In our middleware, we will define a single function, setRole, to set a role property on our user.session object and save it:

module.exports = {  setRole: function (role) {    return function (req, res, next) {      req.session.role = role;      req.session.save(function (err) {        next();      });    }  }};

2. Next, we will include our middleware in our Express /app.js configuration. We will make a new route called /admin that we will use to set the role admin. Our middleware should ...