In any web application, authentication is always a troublesome piece. With the wrong methods, you can create bugs, maintenance problems, and security holes. Auth0 is the de facto standard for authentication with web applications. 
In this course an Angular front end will be used, but the lessons apply to any front end framework.
This course is aimed at front end developers who want to increase security in their applications while reducing login complexity. Before beginning this course you should be familiar with React and HTTP.