SignalR.Orleans 2.2.0

.NET 6.0
NuGet\Install-Package SignalR.Orleans -Version 2.2.0
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.
dotnet add package SignalR.Orleans --version 2.2.0
<PackageReference Include="SignalR.Orleans" Version="2.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add SignalR.Orleans --version 2.2.0
#r "nuget: SignalR.Orleans, 2.2.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install SignalR.Orleans as a Cake Addin
#addin nuget:?package=SignalR.Orleans&version=2.2.0

// Install SignalR.Orleans as a Cake Tool
#tool nuget:?package=SignalR.Orleans&version=2.2.0

Build Package Version NuGet Downloads License Gitter

Orleans is a framework that provides a straight-forward approach to building distributed high-scale computing applications, without the need to learn and apply complex concurrency or other scaling patterns.

ASP.NET Core SignalR is a new library for ASP.NET Core developers that makes it incredibly simple to add real-time web functionality to your applications. What is "real-time web" functionality? It's the ability to have your server-side code push content to the connected clients as it happens, in real-time.

SignalR.Orleans is a package that allow us to enhance the real-time capabilities of SignalR by leveraging Orleans distributed cloud platform capabilities.


Installation is performed via NuGet

From Package Manager:

PS> Install-Package SignalR.Orleans

.Net CLI:

# dotnet add package SignalR.Orleans


# paket add SignalR.Orleans



We need to configure the Orleans Silo with the below:

  • Use .UseSignalR() on ISiloHostBuilder.
  • Make sure to call RegisterHub<THub>() where THub is the type of the Hub you want to be added to the backplane.


var silo = new SiloHostBuilder()
  .RegisterHub<MyHub>() // You need to call this per `Hub` type.
  .AddMemoryGrainStorage("PubSubStore") // You can use any other storage provider as long as you have one registered as "PubSubStore".

await silo.StartAsync();

Configure Silo Storage Provider and Grain Persistance

Optional configuration to override the default implementation for both providers which by default are set as Memory.


.UseSignalR(cfg =>
  cfg.ConfigureBuilder = (builder, config) =>


Now your SignalR application needs to connect to the Orleans Cluster by using an Orleans Client:

  • Use .UseSignalR() on IClientBuilder.


var client = new ClientBuilder()

await client.Connect();

Somewhere in your Startup.cs:

  • Add IClusterClient (created in the above example) to IServiceCollection.
  • Use .AddSignalR() on IServiceCollection (this is part of Microsoft.AspNetCore.SignalR nuget package).
  • Use AddOrleans() on .AddSignalR().


public void ConfigureServices(IServiceCollection services)

Great! Now you have SignalR configured and Orleans SignalR backplane built in Orleans!


Hub Context

HubContext gives you the ability to communicate with the client from orleans grains (outside the hub).

Sample usage: Receiving server push notifications from message brokers, web hooks, etc. Ideally first update your grain state and then push signalr message to the client.


public class UserNotificationGrain : Grain<UserNotificationState>, IUserNotificationGrain
  private HubContext<IUserNotificationHub> _hubContext;

  public override async Task OnActivateAsync()
    _hubContext = GrainFactory.GetHub<IUserNotificationHub>();
    // some code...
    await _hubContext.User(this.GetPrimaryKeyString()).Send("Broadcast", State.UserNotification);


PRs and feedback are very welcome!

Product Versions
.NET net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on SignalR.Orleans:

Repository Stars
SignalR backend based on Orleans.
Version Downloads Last updated
2.2.0 667 8/8/2022
2.1.0 11,708 10/5/2021
2.0.1 5,718 2/15/2021
1.5.0 16,109 11/1/2019
1.4.4 1,043 11/1/2019
1.4.3 6,722 9/23/2019
1.4.2 2,158 9/8/2019
1.4.0 3,258 7/8/2019
1.3.2 2,911 6/13/2019
1.3.1 797 6/10/2019
1.2.0 2,223 3/21/2019
1.1.2 661 2/25/2019
1.1.1 1,075 1/24/2019
1.0.6 3,091 10/12/2018
1.0.5 1,337 7/24/2018
1.0.4 716 7/24/2018
1.0.3 768 7/4/2018
1.0.2 846 7/4/2018
1.0.1 900 6/23/2018
1.0.0-preview-65 1,022 5/31/2018
1.0.0-preview-63 827 5/8/2018
1.0.0-preview-60 710 4/25/2018
1.0.0-preview-58 708 4/24/2018
1.0.0-preview-52 846 3/28/2018
1.0.0-preview-50 903 3/28/2018
1.0.0-preview-47 783 3/16/2018
1.0.0-preview-44 738 3/13/2018
1.0.0-preview-42 729 3/5/2018
1.0.0-preview-39 739 3/5/2018
1.0.0-preview-37 714 3/2/2018
1.0.0-preview-32 1,174 12/21/2017
1.0.0-preview-26 719 12/12/2017
1.0.0-preview-22 677 11/24/2017
1.0.0-preview-19 648 11/22/2017