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nuget-packagesignalr.clientasp.net-core-signalr

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

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.

Solution

  • 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.

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    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?)