A Jwt based authentication sample for ASP.NET Core 2.2.102 without using the Identity system. It includes:

• Users and Roles tables with a many-to-may relationship.
• A separated EF Core data layer with enabled migrations.
• An EF Core 2.2.102 based service layer.
• A Db initializer to seed the default database values.
• An account controller with Jwt and DB based login, custom logout and refresh tokens capabilities.
• 2 sample API controllers to show how user-roles can be applied and used.
• A Jwt validator service to show how to react to the server side changes to a user's info immediately.
• An Angular 7.0+ Client. It contains:
  • A JWT-based Login page.
  • Handling how and where to store the tokens.
  • How to handle refresh tokens mechanism, using reactive timers.
  • How to validate the expiration date of a token.
  • How to decode an access token and extract the user's roles from it.
  • Authorizing access to a module via a route guard based on the user's roles.
  • How to hide or display different parts of a page based on the user's roles.
  • Adding a JWT token to the HTTP requests required authorized access automatically.
  • Handling server side unauthorized errors automatically.

• Update all of the outdated global dependencies using the npm update -g command.
• Install the Angular-CLI.
• Open a command prompt console and then navigate to src/ASPNETCore2JwtAuthentication.AngularClient/ folder.
• Now run the following commands:

npm update -g
npm install
_2-ng-build-dev.bat

• Then open another command prompt console and navigate to src/ASPNETCore2JwtAuthentication.WebApp/ folder.
• Now run the following commands:

dotnet restore
dotnet watch run

• Finally to browse the application, navigate to https://localhost:5001/AngularClient