what is difference between microsoft.aspnetcore.signalr.client and microsoft.aspnetcore.signalr.client.core?

Question

There are two nuget packages for SignalR client:

Microsoft.AspNetCore.SignalR.Client and Microsoft.AspNetCore.SignalR.Client.Core.

Both ASP.NET Core, but I can't find any information why they both exist.

Probably Client.Core has limited functionality, but this is just my guess.

Dispensation

Answer 1

Both ASP.NET Core, but I can't find any information why they both exist.

The Microsoft.AspNetCore.SignalR.Client package depends upon the Microsoft.AspNetCore.SignalR.Client.Core package.

And from doc of "ASP.NET Core SignalR .NET Client", we can find that:

The Microsoft.AspNetCore.SignalR.Client package is required for .NET clients to connect to SignalR hubs.

Besides, if you do a test with only installing the Microsoft.AspNetCore.SignalR.Client.Core package in your client app, you would find you can not call WithUrl method to configure the HubConnection to use HTTP-based transports to connect to the specified URL.

And it would cause the error, like below.

'HubConnectionBuilder' does not contain a definition for 'WithUrl' and no accessible extension method 'WithUrl' accepting a first argument of type 'HubConnectionBuilder' could be found (are you missing a using directive or an assembly reference?)

Greatest

Answer 2

As of .Net 8.0 when you install Microsoft.AspNetCore.SignalR.Client the Microsoft.AspNetCore.SignalR.Client.Core will be installed as well. Microsoft.AspNetCore.SignalR.Client.Core should be just a subset which does not have some extended methods like WithURL.

Obannon