DKNet is an enterprise-grade .NET library collection focused on advanced EF Core extensions, dynamic predicate building, and the Specification pattern. It provides production-ready tools for building robust, type-safe, and testable data access layers, including dynamic LINQ support, LinqKit integration. Designed for modern cloud-native applications, DKNet enforces strict code quality, async best practices, and full documentation for all public APIs. Enterprise-grade .NET library suite for modern application development, featuring advanced EF Core extensions (dynamic predicates, specifications, LinqKit), robust Domain-Driven Design (DDD) patterns, and domain event support. DKNet empowers scalable, maintainable, and testable solutions with type-safe validation, async/await, XML documentation, and high code quality standards. Ideal for cloud-native, microservices, and enterprise architectures.
Get Started
$ dotnet add package DKNet.EfCore.DataAuthorizationReadme
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!