Building Scalable Apps with Redis and Node.js

Using sessions in Express

Express uses the same methods, cookies, as most other web frameworks to track sessions. A cookie will have the session ID so that Express can look it up on each request.

Using cookies in Express

The latest version of Express has taken out much of the middleware that was previously included in Express. This is important when migrating from Express 3 to 4. We will use the cookie-parser package, which should already be installed. We will now add cookie parsing to our app. It is a middleware, so we will put it with all the other middleware. Remember that the middleware is processed in order, so that we can add each before the middleware that will actually use it, which is our routes. We will do this by adding a variable declaration ...