April 2016
Beginner
156 pages
3h 36m
English
Content preview from Getting Started with hapi.jsBecome 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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Introduction to joi
As mentioned earlier, joi (https://github.com/hapijs/joi) is an object schema validation library used in nearly every module throughout the hapi ecosystem. If you tried adding an incorrect configuration object to a connection, a route configuration object, or when registering plugins, and found that the server threw a detailed validation error, that was joi at work. When the hapi team were going for a configuration-over-code approach for building a framework, having an excellent object schema validator to validate all the configuration objects and provide detailed errors was important. The same goes for when building an application.
Similar to testing, validation is one of those things that developers might not give the full ...
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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.