Complete OpenID Connect STS, Client, Resource Implementation. OIDC Uses Identity Server 4 Asp.net Identity Role Based Solution with both Client Credential and Resource Owner Password Grany Type.

• IdentityServer4 Full STS Implementation. (STS here refers to IdentityServer Project)
• Asp.net Core Identity Users and Roles Fully implemented
• .NET 5 and Entity Framework Core 5
• Custom profile and Custom Tokens implementations
• Full Client App Accessing secure API Endpoint
• Database Seeding with Configuration and Identity Users (with roles) examples
• Registration and Login API Endpoints in STS
• Headless/Cookieless No UI Implementation and API call and token exchange for Both Native and SPA apps
• Certificate Generator for production use is added but using rolling certificate generator services like Azure KeyVault is highly recommended

1. Modify ConnectionString on IdentityServer configuration (Use Sqlite or any other ef core provider for database)
2. Migrations has already been added for Relation data stores, Run Migration Database update like below:

dotnet ef database update --context ConfigurationDbContext
dotnet ef database update --context PersistedGrantDbContext
dotnet ef database update --context ApplicationDbContext

1. For non-relational data store add the proper ef-core nuget extension, remove Migration Files and make code modifications to run EnsureDatabaseCreate command is executed. If you need to re-add the migrations for relational databases run these commands:

dotnet ef migrations add InitialConfigurationDbMigration -c ConfigurationDbContext -o Data/Migrations/ConfigurationDb
dotnet ef migrations add InitialPersistedGrantDbMigration -c PersistedGrantDbContext -o Data/Migrations/PersistedGrantDb
dotnet ef migrations add InitialAspIdentityDbMigration -c ApplicationDbContext -o Data/Migrations/IdentityDb

1. Run both IdentityServer project (STS) and API by the command dotnet run
2. Run the client console app by the command dotnet run

• Modify Db Provider (you can use any EFCore Database providers by making correct modifications)
• Replace AddDeveloperSigningCredential with AddSigningCredential method in STS statup class using proper Signing credentials It is so critical for production apps to use proper signing certificare since we are passing both users and roles information across services and singnature is the only binding contract for the claims integirity.
• Add more Clients, APIs and Scopes by modifying the Config.CS file in STS Note: After initial run, you need to update database directly.