February 2019
Beginner
694 pages
18h 4m
English
Content preview from Mastering TypeScript 3 - Third Edition
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Auth Guards
Our application can now render the SecureComponent or the LoginPanelComponent, depending on the URL that is provided by the browser. Currently, if no URL is provided, the application will render the SecureComponent, which is the main screen for our site. But what if we need to make sure that the SecureComponent is only rendered if the user has already logged into the website. In other words, how do we protect users from accessing areas of our site if they have not logged in? Angular uses what are known as authentication guards, or Auth Guards, to accomplish this.
The basic premise of an Auth Guard is to allow our code to check whether a user has the correct authorization to access a particular route. This is done by creating a ...
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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.