In this tutorial, we are going to cover a simple example of how to implement Role Based Authorization / access control in Asp.Net Core 3.0 using visual studio 2019. In one of the previous tutorials, we have discussed Asp.Net Core 3.0 web API token based authentication example using JWT. So, now first-of-all, we will create Asp.Net Core 3.0 application, and then we will add identity to our application and then we will register users and then we will see how to create roles and then finally we will see how to authorize pages.