ServiceCollectionExtensions Class

Definition

Namespace

Savvyio.Extensions.DependencyInjection.EFCore.Domain

Assemblies

Savvyio.Extensions.DependencyInjection.EFCore.Domain.dll

Source

src/Savvyio.Extensions.DependencyInjection.EFCore.Domain/ServiceCollectionExtensions.cs

Extension methods for the IServiceCollection interface.

public static class ServiceCollectionExtensions

Inheritance

object

ServiceCollectionExtensions

Examples

Registering domain aggregates backed by EF Core requires two registrations: AddEfCoreAggregateDataSource to bind the aggregate context as IEfCoreDataSource, and AddEfCoreAggregateRepository to add the repository on top. The aggregate data source sets the boundary for which context the repository uses; it must be registered first. The example registers both services and resolves the repository interface to confirm the aggregate wiring.

using System;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Savvyio.Domain;
using Savvyio.Extensions.DependencyInjection.Domain;
using Savvyio.Extensions.DependencyInjection.EFCore;
using Savvyio.Extensions.DependencyInjection.EFCore.Domain;

namespace ExampleApp;

public sealed class AggregateRegistrationExample
{
    public ServiceProvider BuildProvider()
    {
        var services = new ServiceCollection();
        services.AddSingleton<IDomainEventDispatcher, RecordingDomainEventDispatcher>();
        services.AddEfCoreAggregateDataSource(options =>
        {
            options.ContextConfigurator = builder => builder.EnableDetailedErrors();
            options.ModelConstructor = modelBuilder => modelBuilder.Entity<OrderAggregate>().HasKey(order => order.Id);
        });
        services.AddEfCoreAggregateRepository<OrderAggregate, Guid>();

        return services.BuildServiceProvider();
    }

    public bool HasExpectedRegistrations(ServiceProvider provider)
    {
        var repository = provider.GetRequiredService<IAggregateRepository<OrderAggregate, Guid>>();

        return repository is Savvyio.Extensions.EFCore.Domain.EfCoreAggregateRepository<OrderAggregate, Guid>;
    }
}

public sealed class RecordingDomainEventDispatcher : IDomainEventDispatcher
{
    public void Raise(IDomainEvent request)
    {
    }

    public Task RaiseAsync(IDomainEvent request, Action<Cuemon.Threading.AsyncOptions>? setup = null)
    {
        return Task.CompletedTask;
    }
}

public sealed class OrderAggregate : Aggregate<Guid, IDomainEvent>, IAggregateRoot<IDomainEvent, Guid>
{
    public OrderAggregate(Guid id) : base(id)
    {
    }
}

Methods

Name	Description
AddEfCoreAggregateDataSource(IServiceCollection, Action<EfCoreDataSourceOptions>, Action<ServiceOptions>)	Adds an EfCoreDataSource implementation to the specified IServiceCollection.
AddEfCoreAggregateDataSource<TMarker>(IServiceCollection, Action<EfCoreDataSourceOptions<TMarker>>, Action<ServiceOptions>)	Adds an EfCoreDataSource<TMarker> implementation to the specified IServiceCollection.
AddEfCoreAggregateRepository<TEntity, TKey>(IServiceCollection, Action<ServiceOptions>)	Adds an EfCoreAggregateRepository<TEntity, TKey> to the specified IServiceCollection.
AddEfCoreAggregateRepository<TEntity, TKey, TMarker>(IServiceCollection, Action<ServiceOptions>)	Adds an EfCoreAggregateRepository<TEntity, TKey, TMarker> to the specified IServiceCollection.