In this tutorial I will show you how to Configure ASP.NET Identity with Identity Server 4. The aim of this tutorial series is to ease up the Authentication process and provide a clear step-by-step process on how to secure your web applications. The entire tutorial will be done in .NET 6 and Blazor.

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By the end of this tutorial, you will:
– Be able to integrate ASP.NET Identity with IdentityServer4
– Understand the components of a fully-secured .NET 6 application
– Understand the installation process for an IdentityServer4 project
– Be able to install the dependencies necessary for IdentityServer4

Source code: https://github.com/iulianoana/CoffeeShopper-IS4
Slides: https://resources.codewithjulian.com/vid-aspnet-identity-is4-p1

Steps:
Part 1: Setup the API
1. Create a new ASP.NET Core Empty project
2. Setup a ClassLibrary project for the Database
– Install-Package Microsoft.EntityFrameworkCore.SqlServer -Version 6.0.1
– Install-Package Microsoft.EntityFrameworkCore.Tools -Version 6.0.1
3. Add and Migrate an entity with EntityFramework Core
4. Add a CoffeeShop Service and Model
5. Create and Register API Controller (CoffeeShop)
6. Add CoffeeShops to the Database
7. Register the Service in Program.cs

Part 2 – Setting up the Identity Server (Server) project
8. Add an empty ASP.NET Web Project to the Solution
9. Install IdentityServer4 Dependencies (written bellow so you can just copy-paste them in your package manager console in the Server project)
Install-Package IdentityServer4 -Version 4.1.2
Install-Package IdentityServer4.EntityFramework -Version 4.1.2
Install-Package Microsoft.EntityFrameworkCore.Tools -Version 6.0.1
Install-Package Microsoft.EntityFrameworkCore.SqlServer -Version 6.0.1
Install-Package Microsoft.AspNetCore.Identity.UI -Version 6.0.1
Install-Package IdentityServer4.AspNetIdentity -Version 4.1.2
Install-Package Microsoft.AspNetCore.Identity.EntityFrameworkCore -Version 6.0.1
10. Add Connection String to appsettings.json
11. Configure Program.cs
12. Create IdentityServer migrations (Default project: Server)
13. Update the IdentityServer Databases
14. Add ASP.NET Identity to the Server project
15. Add ASP.NET Identity migrations (Server proj) and run them
Add-Migration InitialAspNetIdentityMigration -Context AspNetIdentityDbContext
Update-Database -Context AspNetIdentityDbContext
Discovery Document: https://localhost:5443/.well-known/openid-configuration
16. Add IdentityServer4 Configuration and SeedData
– Seed.cs template: https://github.com/IdentityServer/IdentityServer4/blob/main/src/EntityFramework/migrations/SqlServer/SeedData.cs
– Config.cs template: https://github.com/kevinrjones/SettingUpIdentityServer/blob/master/step-by-step-demo/identity/IdSWithIdentity/Config.cs
17. Setup the IdentityServer Seeding process
– dotnet run Server/bin/Debug/net6.0/Server /seed –project Server
18. Setup the IdentityServer authentication flow
– https://github.com/IdentityServer/IdentityServer4.Quickstart.UI
19. Update IdentityServer QuickStart code
20. Setup Program.cs for integration with the QuickStart code (Server)

Useful Links:
Identity Article: https://docs.microsoft.com/en-us/aspnet/core/security/authentication/identity?view=aspnetcore-6.0
– Playlist: https://youtube.com/playlist?list=PL1EYnCfHLswwOz77bgfFbFqRnY3bXYHp3

0:00 – Intro
0:50 – Components of this tutorial
4:03 – Create a new ASP.NET Core Empty project
6:09 – Setup a ClassLibrary project for the Database
13:32 – Add and Migrate an entity with EntityFramework Core
20:00 – Add a CoffeeShop Service and Model
24:11 – Create and Register API Controller (CoffeeShop)
25:57 – Add CoffeeShops to the Database
27:49 – Register the Service in Program.cs
29:18 – Add an empty ASP.NET Web Project to the Solution
31:03 – Install IdentityServer4 Dependencies
32:23 – Add Connection String to appsettings.json
32:50 – Configure Program.cs
35:48 – Create IdentityServer migrations
37:47 – Update the IdentityServer Databases
38:55 – Add ASP.NET Identity to the Server project
41:55 – Add ASP.NET Identity migrations
44:33 – Add IdentityServer4 Configuration and SeedData
51:41 – Setup the IdentityServer Seeding process
55:49 – Setup the IdentityServer authentication flow
56:53 – Update IdentityServer QuickStart code
01:01:42 – Setup Program.cs for integration with the QuickStart code

Credits:
– Many thanks to Kevin Jones from Rock Solid Knowledge and his comprehensive tutorial series on IdentityServer.
– Sound effects obtained from https://www.zapsplat.com
– Icons designed by http://www.freepik.com and https://www.flaticon.com/
– Images from the artists on https://unsplash.com/