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Learn how to implement a custom user authentication system that controls users access to web resources, using password hashing and JSON Web Tokens for security. The system lets users sign up, log in, and log out, limiting access to certain actions based on authorization.
You may think that authentication is one of the easiest parts of your application, and yes, it can be. However, to do authentication correctly can be a very difficult thing. If you manage your passwords incorrectly, it opens you up to a huge security vulnerability that will cost you later on down the road. Learning about the basics is the first place to start.
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It is time to build the core of our application without any of the complexity of authentication or authorization. This stage is all about setting up the files we need for viewing our books and adding more to our list.
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We now have the core of our application built, however it is open to the world to use and edit/delete any book. We should set up some sort of authentication system to prevent this and allow a user to “own”!
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The last part of our project is a way to authorize a user to let them do things based on their role. We discussed in Stage 1 the difference between authentication, which we just finished, and authorization. We will now create the role of administrator who can manage users and edit and delete any book on the site.
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