Part 0: NuGet packages

All Fusion packages are available on NuGet:

Your should reference:

• Stl.Fusion.Server – from server-side assemblies
  • If you use .NET Framework 4.X, reference Stl.Fusion.Server.NetFx instead
• Stl.Fusion.Client – from client-side assemblies;
  • Blazor clients may reference Stl.Fusion.Blazor instead, which references Stl.Fusion.Client
• Stl.Fusion – from shared assemblies, i.e. the ones to be used on both sides.
• Stl.Fusion.EntityFramework – from server-side assemblies, if you plan to use EF Core.

The list of Fusion packages:

• Stl - stands for “ServiceTitan Library” (yeah, every company needs its own STL). It’s a collection of relatively isolated abstractions and helpers we couldn’t find in BCL. Stl depends on Castle.Core & maybe some other third-party packages.
• Stl.Generators - has no dependencies. It’s a Roslyn-based code generation library focused on proxies / call interception. All Fusion proxies are implemented with it.
• Stl.Interception - depends on Stl. Implements a number of call interception helpers which are used by [Stl.Generators].
• Stl.Rpc - depends on Stl. An RPC API that Fusion uses to implement Compute Service Clients. It’s probably the fastest RPC implementation over WebSockets that’s currently available on .NET - even for plain RPC calls.
• Stl.Rpc.Server - depends on Stl.Rpc. An implementation of Stl.Rpc server for ASP.NET Core, which uses WebSockets.
• Stl.Rpc.Server.NetFx - depends on Stl.Rpc. An implementation of Stl.Rpc server for ASP.NET / .NET Framework 4.X, which uses WebSockets.
• Stl.CommandR - depends on Stl and Stl.Interception. CommandR is “MediatR on steroids” designed to support not only interface-based command handlers, but also AOP-style handlers written as regular methods. Besides that, it unifies command handler API (pipeline behaviors and handlers are the same there) and helps to eliminate nearly all boilerplate code you’d have otherwise.
• Stl.Fusion - depends on Stl, Stl.Interception, and Stl.CommandR. Nearly everything related to Fusion is there.
• Stl.Fusion.Ext.Contracts - depends on Stl.Fusion. Contracts for some handy extensions (ready-to-use Fusion services) - e.g. Fusion-based authentication is there.
• Stl.Fusion.Ext.Services - depends on Stl.Fusion.Ext.Contracts and Stl.Fusion.EntityFramework. Implementations of extension contracts from Stl.Fusion.Ext.Contracts.
• Stl.Fusion.Server - depends on Stl.Fusion and Stl.Rpc. Basically, Fusion + Stl.Rpc.Server + some handy server-side helpers.
• Stl.Fusion.Server.NetFx - .NET Framework 4.X version of Stl.Fusion.Server.
• Stl.Fusion.Blazor - depends on Stl.Fusion. Provides Blazor-Fusion integration. Most importantly, there is StatefulCompontentBase<TState>, which allows to create auto-updating components which recompute their state once the data they consume from Fusion services changes.
• Stl.Fusion.Blazor.Authentication - depends on Stl.Fusion.Blazor and Stl.Fusion.Ext.Contracts. Implements Fusion authentication-related Blazor components.
• Stl.Fusion.EntityFramework - depends on Stl.Fusion. Contains EF Core integrations for CommandR and Fusion.
• Stl.Fusion.EntityFramework.Npgsql - depends on Stl.Fusion.EntityFramework.
  Contains Npgsql - based implementation of operation log change tracking. PostgreSQL has NOTIFY / LISTEN commands allowing to use it as a message queue, so if you use this database, you don’t need a separate message queue to allow Fusion to notify peer hosts about operation log changes.
• Stl.Fusion.EntityFramework.Redis - depends on Stl.Fusion.EntityFramework.
  Contains Redis - based implementation of operation log change tracking.

There are some other packages, but more likely than not you won’t need them. The complete list can be found here (the packages with the most recent version aren’t obsolete):

• https://www.nuget.org/packages?q=Tags%3A%22stl_fusion%22

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