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DKNet.EfCore.DataAuthorization 10.0.27

DKNet.EfCore.DataAuthorization

A .NET library for secure, multi-tenant data authorization in Entity Framework Core. Enables automatic filtering of data based on ownership, supports DDD and API scenarios, and is designed for extensibility.

Features

• Automatic global query filtering based on data ownership keys
• Interfaces for associating entities with owners (IOwnedBy), providing ownership keys (IDataOwnerProvider), and integrating with DbContext (IDataOwnerDbContext)
• Extension methods for easy setup via dependency injection (EfCoreDataAuthSetup)
• Support for multi-tenancy and secure data isolation
• .NET 9.0 compatible

Installation

Add the NuGet package to your project:

dotnet add package DKNet.EfCore.DataAuthorization

Usage

Register the data authorization provider and setup in your DI container:

using Microsoft.Extensions.DependencyInjection;
using DKNet.EfCore.DataAuthorization;

services.AddAutoDataKeyProvider<MyDbContext, MyOwnerProvider>();

Implement IOwnedBy on your entities:

public class Document : IOwnedBy
{
 public string? OwnedBy { get; private set; }
 public void SetOwnedBy(string ownerKey) => OwnedBy = ownerKey;
}

Implement IDataOwnerProvider to supply ownership keys and accessible keys:

public class MyOwnerProvider : IDataOwnerProvider
{
 public IEnumerable<string> GetAccessibleKeys() => ...; // e.g., from user context
 public string GetOwnershipKey() => ...; // e.g., current user's tenant key
}

API

• EfCoreDataAuthSetup.AddAutoDataKeyProvider<TDbContext, TProvider>(IServiceCollection): Registers automatic data key management for a DbContext.
• IOwnedBy: Interface for entities supporting ownership, with methods to get/set the owner key.
• IDataOwnerProvider: Interface for providing accessible keys and ownership key for new entities.
• IDataOwnerDbContext: Interface for DbContexts supporting data authorization, exposing accessible keys.

License

MIT © 2026 drunkcoding

Repository

https://github.com/baoduy/DKNet

Contributing

Pull requests and issues are welcome!