Dynamxy

Library for .NET enabling the use of dynamic proxy objects.

Getting Started

Either fork, clone or download this repository. Or install the library via NuGet:

Install-Package SWZR.Dynamxy

How does it work

During instantiation of a proxy object, code is dynamically emitted using primarly IL to create a concrete implementation based on a given interface. This type functions as intermediary and forwards any method call to the predefined interceptor.

Usage

In order to use dynamic proxy objects first define an interface:

public interface ITestInterface
{
	object Echo(object obj);
}

Afterwards define an interceptor which handles all method calls:

using System.Reflection;
using SWZR.Dynamxy;

public class EchoInterceptor : IInterceptor
{
    public object InterceptMethod(object instance, MethodInfo info, object[] parameter)
    {
        return parameter.Length > 0 ? parameter[0] : null;
    }
}

The last step is to construct an instance of the interceptor and eventually the dynamic proxy itself:

var factory = new ProxyFactory<EchoInterceptor>();
var proxy = factory.Create<ITestInterface>();

// Will yield 'Hello World'.
var value = proxy.Echo("Hello World");

Use Cases

• Authorization
• Logging
• REST
• RPC
• ...

Roadmap

• Improve and extend unit tests
• Allow intercepting methods of concrete types
• Add an example

License

This project is licensed under the MIT License - see the LICENSE.md file for details