March 2020
Intermediate to advanced
328 pages
7h 58m
English
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Chapter 10Track Connected Carts with Presence
In the last chapter, we built a shopping cart with real-time out-of-stock alerts. That feature completed the shopper-facing section of our Sneakers23 application. In this chapter, we’ll build an admin-facing dashboard that will show real-time information about all the current shoppers on the website. You’ll learn about and use Phoenix Tracker and Presence along the way.
Distributed state is a hard problem. Variations in time and network partitions are just some of the challenges you’ll face when writing a distributed system. Phoenix Tracker makes distributing a list of processes and metadata about each process an easy endeavor. Tracker uses an advanced data structure to distribute state across ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.