README.md

AppCore .NET add-ons for Microsoft.Extensions.DependencyInjection

This project contains add-ons for the Microsoft.Extensions.DependencyInjection library. It adds support for registering services with the IServiceCollection by reflection.

Packages

Package	Description
AppCoreNet.Extensions.DependencyInjection.Abstractions	Provides the abstractions for registering services via reflection.
AppCoreNet.Extensions.DependencyInjection.AssemblyExtensions	Adds support for registering services by scanning assemblies.
AppCoreNet.Extensions.DependencyInjection.DependencyModelExtensions	Adds support for registering services by scanning assemblies of a DependencyContext

Usage

The library provides several extensions methods for the IServiceCollection interface:

AddFrom

This method is analog to IServiceCollection.Add() but instead of specifying the implementation type explicitly it will resolve them using reflection.

Example:

services.AddFrom<IMyService>(r => r.Assembly());

(NOTE: the Assembly() method will be available after adding the AssemblyExtensions package.)

This will scan the current assembly for all implementations of the IMyService type and registers them with the IServiceCollection.

By default the services are registered with the ServiceLifetime.Transient lifetime, to change the default you can call WithDefaultLifetime(). Alternatively the service implementation can be decorated with the LifetimeAttribute.

TryAddFrom

This method provides the same features than AddFrom() but will skip services which have already been registered with the same service type.

TryAddEnumerableFrom

This method provides the same features than AddFrom() but will skip services which have already been registered with the same service and implementation type.