Akka.Cluster.Hosting 0.2.0

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There is a newer version of this package available.
See the version list below for details.
dotnet add package Akka.Cluster.Hosting --version 0.2.0                
NuGet\Install-Package Akka.Cluster.Hosting -Version 0.2.0                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Akka.Cluster.Hosting" Version="0.2.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Akka.Cluster.Hosting --version 0.2.0                
#r "nuget: Akka.Cluster.Hosting, 0.2.0"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Akka.Cluster.Hosting as a Cake Addin
#addin nuget:?package=Akka.Cluster.Hosting&version=0.2.0

// Install Akka.Cluster.Hosting as a Cake Tool
#tool nuget:?package=Akka.Cluster.Hosting&version=0.2.0                

Akka.Hosting

BETA: this project is currently in beta status as part of the Akka.NET v1.5 development effort, but the packages published in this repository will be backwards compatible for Akka.NET v1.4 users.

HOCON-less configuration, application lifecycle management, ActorSystem startup, and actor instantiation for Akka.NET.

Consists of the following packages:

  1. Akka.Hosting - core, needed for everything
  2. Akka.Remote.Hosting - enables Akka.Remote configuration
  3. Akka.Cluster.Hosting - used for Akka.Cluster, Akka.Cluster.Sharding
  4. Akka.Persistence.SqlServer.Hosting - used for Akka.Persistence.SqlServer support.
  5. Akka.Persistence.PostgreSql.Hosting - used for Akka.Persistence.PostgreSql support.

Summary

We want to make Akka.NET something that can be instantiated more typically per the patterns often used with the Microsoft.Extensions.Hosting APIs that are common throughout .NET.

using Akka.Hosting;
using Akka.Actor;
using Akka.Actor.Dsl;
using Akka.Cluster.Hosting;
using Akka.Remote.Hosting;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddAkka("MyActorSystem", configurationBuilder =>
{
    configurationBuilder
        .WithRemoting("localhost", 8110)
        .WithClustering(new ClusterOptions(){ Roles = new[]{ "myRole" },
            SeedNodes = new[]{ Address.Parse("akka.tcp://MyActorSystem@localhost:8110")}})
        .WithActors((system, registry) =>
    {
        var echo = system.ActorOf(act =>
        {
            act.ReceiveAny((o, context) =>
            {
                context.Sender.Tell($"{context.Self} rcv {o}");
            });
        }, "echo");
        registry.TryRegister<Echo>(echo); // register for DI
    });
});

var app = builder.Build();

app.MapGet("/", async (context) =>
{
    var echo = context.RequestServices.GetRequiredService<ActorRegistry>().Get<Echo>();
    var body = await echo.Ask<string>(context.TraceIdentifier, context.RequestAborted).ConfigureAwait(false);
    await context.Response.WriteAsync(body);
});

app.Run();

No HOCON. Automatically runs all Akka.NET application lifecycle best practices behind the scene. Automatically binds the ActorSystem and the ActorRegistry, another new 1.5 feature, to the IServiceCollection so they can be safely consumed via both actors and non-Akka.NET parts of users' .NET applications.

This should be open to extension in other child plugins, such as Akka.Persistence.SqlServer:

builder.Services.AddAkka("MyActorSystem", configurationBuilder =>
{
    configurationBuilder
        .WithRemoting("localhost", 8110)
        .WithClustering(new ClusterOptions()
        {
            Roles = new[] { "myRole" },
            SeedNodes = new[] { Address.Parse("akka.tcp://MyActorSystem@localhost:8110") }
        })
        .WithSqlServerPersistence(builder.Configuration.GetConnectionString("sqlServerLocal"))
        .WithShardRegion<UserActionsEntity>("userActions", s => UserActionsEntity.Props(s),
            new UserMessageExtractor(),
            new ShardOptions(){ StateStoreMode = StateStoreMode.DData, Role = "myRole"})
        .WithActors((system, registry) =>
        {
            var userActionsShard = registry.Get<UserActionsEntity>();
            var indexer = system.ActorOf(Props.Create(() => new Indexer(userActionsShard)), "index");
            registry.TryRegister<Index>(indexer); // register for DI
        });
})
ActorRegistry

As part of Akka.Hosting, we need to provide a means of making it easy to pass around top-level IActorRefs via dependency injection both within the ActorSystem and outside of it.

The ActorRegistry will fulfill this role through a set of generic, typed methods that make storage and retrieval of long-lived IActorRefs easy and coherent:

var registry = ActorRegistry.For(myActorSystem); // fetch from ActorSystem
registry.TryRegister<Index>(indexer); // register for DI
registry.Get<Index>(); // use in DI
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (8)

Showing the top 5 NuGet packages that depend on Akka.Cluster.Hosting:

Package Downloads
Akka.Coordination.Azure

Akka.NET coordination module for Microsoft Azure

Akka.Coordination.KubernetesApi

Akka.NET coordination module for Kubernetes

FAkka.Shared

Package Description

Akka.Cluster.Chunking

Akka.NET ActorSystem extension for managing delivery of very large messages over Akka.Cluster.

FAkka.Server.Linux

Package Description

GitHub repositories (2)

Showing the top 2 popular GitHub repositories that depend on Akka.Cluster.Hosting:

Repository Stars
petabridge/akkadotnet-code-samples
Akka.NET professional reference code samples
Aaronontheweb/InMemoryCQRSReplication
Akka.NET Reference Architecture - CQRS + Sharding + In-Memory Replication
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1.5.2 4,567 4/6/2023
1.5.1.1 1,141 4/4/2023
1.5.1 4,667 3/16/2023
1.5.0 5,552 3/2/2023
1.5.0-beta6 437 3/1/2023
1.5.0-beta4 166 3/1/2023
1.5.0-beta3 232 2/28/2023
1.5.0-alpha4 431 2/17/2023
1.0.3 7,880 2/8/2023
1.0.2 1,879 1/31/2023
1.0.1 4,432 1/6/2023
1.0.0 2,933 12/28/2022
0.5.2-beta1 1,173 11/28/2022
0.5.1 9,582 10/20/2022
0.5.0 3,275 10/4/2022
0.4.3 3,407 9/10/2022
0.4.2 5,983 8/12/2022
0.4.1 4,139 7/21/2022
0.4.0 2,379 7/18/2022
0.3.4 3,682 6/23/2022
0.3.3 1,376 6/16/2022
0.3.2 1,212 6/13/2022
0.3.1 53,772 6/9/2022
0.3.0 10,166 5/24/2022
0.2.2 2,600 4/10/2022
0.2.1 1,247 4/9/2022
0.2.0 1,188 4/9/2022
0.1.5 1,209 4/6/2022
0.1.4 1,566 4/2/2022
0.1.3 1,205 4/1/2022
0.1.2 1,168 3/31/2022
0.1.1 1,398 3/18/2022
0.1.0 1,674 3/10/2022

• [Bugfix: Fixed issues with duplicate IServiceProvider registration](https://github.com/akkadotnet/Akka.Hosting/pull/32), this could cause multiple instances of dependencies to be instantiated since Akka.Hosting creating multiple IServiceProvider instances during the construction process. This has been resolved.

Full changelog at https://github.com/akkadotnet/Akka.Hosting/blob/refs/tags/0.2.0/RELEASE_NOTES.md