In this tutorial, we are going to cover a very simple example on how to add authentication to Angular 7 app using Asp.Net Core 3 application in visual studio 2019. Asp.Net Core 3 offers authentication in single page application using the support of Asp.Net Core Identity. So, in this tutorial, we will create an Angular 7 app with authentication using Asp.Net Core 3 and then we will see how it works.