MicroDI is a simple and lightweight DI Container.
- Constructor Injection via Delegate Generation using Expressions
- Named or Typed Service Definition
- Smart Constructor Detection Using Provided Arguments and Registered Services
Nuget Gallery: https://www.nuget.org/packages/RhoMicro.MicroDI
.Net CLI: dotnet add package RhoMicro.MicroDI --version 4.3.1
Package Manager: Install-Package RhoMicro.MicroDI -Version 4.3.1
- Instantiate a new
Container
IContainer container = new Container();- Construct an
IServiceRegistrationand add it to the container
Type serviceType = typeof(TService);
String serviceName = "MyService";
IServiceDefinition definition = new ServiceDefinition(serviceType, serviceName);
Type implementationType = typeof(TImplementation);
Object constructorArg1 = new Object();
Object constructorArg2 = new Object();
IServiceFactoryInstructions instructions = new ServiceFactoryInstructions(serviceImplementationType, new Object[] { arg1, arg2 });
IServiceFactory factory = new TransientServiceFactory(instructions);
IServiceRegistration registration = new ServiceRegistration(definition, factory);
container.Add(registration);- Resolve your service
Type serviceType = typeof(TService);
String serviceName = "MyService";
IServiceDefinition definition = new ServiceDefinition(serviceType, serviceName);
Object service = container.Resolve(definition);Extension Methods found in Extensions.cs simplify using the container. The previous workflow is reduced to the following:
- Instantiate a new
Container
IContainer container = new Container();- Add a service registration to the container
Object constructorArg1 = new Object();
Object constructorArg2 = new Object();
container.AddTransient<TService, TImplementation>("MyService", new Object[]{constructorArg1, constructorArg2});- Resolve your service by type or name
TService service = container.Resolve<TService>();
service = container.Resolve<TService>("MyService");Note: The provided Container class makes use of ServiceDefinitionEqualityComparer.cs for definition comparisons and resolving services based on definitions. Two IServiceDefinitions are defined as equal when both their ServiceName and ServiceType fields are equal.
Using Helpers.GetConstructorExpression you may create your own IServiceFactory. Looking at the implementation of TransientServiceFactory may help you with getting started.