This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(310.4, 2%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
can not use AddSignalR and I can use AddSignalRCore but there will be error.
I created the ASP.NET Core Web API (native aot).
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(259.20000000000005, 61%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPN%3C/text%3E%3C/svg%3E)
Hi @mc, I've also tried .NET 8, and it can work fine with AddSignalR . If you're encountering issues with using AddSignalR and are restricted to using AddSignalRCore, it's possible that your project is targeting a specific runtime or platform where AddSignalR is not fully supported. Additionally, since you mentioned using ASP.NET Core Web API with native AOT (ahead-of-time compilation), which is not supported SignalR. As Bruce said, consider alternative approaches for real-time communication in your ASP.NET Core Web API project. For example, you could use WebSocket APIs directly or explore third-party libraries that provide similar functionality.
ok I know it
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
in net 8 min api its:
builder.Services.AddSignalR();
...
app.MapHub<MyHub>("/myHub");
note: the signal/r library can not be compiled to native aot and is not supported. you can use websockets. see:
https://learn.microsoft.com/en-us/aspnet/core/fundamentals/native-aot?view=aspnetcore-8.0
please try there will be error. and can not trimmed.
As I stated, you can not use signal/r with an aot project. With an aot project you are limited in which libraries you use, and which clr calls you make. Most libraries that use reflection will not work.