June 2013
Intermediate to advanced
236 pages
4h 33m
English
Content preview from Express Web Application DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Using sessions to store data
While we can use cookies for storing information relevant to a user, it starts to become unwieldy as their number increases and the size of the data grows. That's where sessions come in.
Sessions, however, should not be mistaken for an independent replacement for cookies. In fact, the sessions API leverages a cookie to identify a user's session.
There are two broad ways of implementing sessions in Express: using cookies and using a session store at the backend. Both of them add a new object in the request object named session, which contains the session variables.
No matter which method you use, Express provides a consistent interface for interacting with the session data.
Cookie-based sessions
Using the fact that cookies ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.