March 2025
Intermediate to advanced
472 pages
12h 10m
English
Content preview from Agile Web Development with Rails 7.2Become 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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Iteration F4: Broadcasting Updates with Action Cable
Up until now, our users’ web browsers have requested information from our Rails app, either by going directly to a URL or by clicking a link or button. It’s also possible to send information from our Rails app to our users’ browsers without a direct request. The technology that enables this is called WebSockets.[61] Prior to Rails 5, setting this up was fairly involved, but Rails 5 introduced Action Cable, which simplifies pushing data to all connected browsers.
We can use Action Cable and WebSockets to broadcast price updates to the users browsing the catalog. To see why we’d want to, bring up the Depot application in two browser windows or tabs. In the first window, display the catalog. ...
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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.
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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.