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docs: Update signalr.md #14779

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67 changes: 34 additions & 33 deletions doc/articles/signalr.md
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Expand Up @@ -4,48 +4,49 @@ uid: Uno.Development.SignalR

# SignalR

[SignalR](https://docs.microsoft.com/en-us/aspnet/core/signalr/introduction?view=aspnetcore-3.1) is an ASP.NET Core library that allows server-side code to be instantly pushed to the client.
[SignalR](https://learn.microsoft.com/aspnet/core/signalr/introduction?view=aspnetcore-7.0) is an ASP.NET Core library that allows server-side code to be instantly pushed to the client.

## Prerequisites
* Visual Studio 2019 or higher
* Azure account (to publish SignalR service)
## Prerequisites

- Visual Studio 2019 or higher
- Azure account (to publish SignalR service)

## Steps

1. Create `ASP.NET Core web application` in Visual Studio and name it `UnoChat.Service`.

![project-template](Assets/project-structure.JPG)
![project-template](Assets/project-structure.JPG)

2. Add [SignalR Hub](https://docs.microsoft.com/en-us/aspnet/core/tutorials/signalr?view=aspnetcore-3.1&tabs=visual-studio#create-a-signalr-hub) to your `[YourProjectName].Service` project in a `Hubs` folder.
2. Add [SignalR Hub](https://learn.microsoft.com/aspnet/core/tutorials/signalr?view=aspnetcore-7.0&tabs=visual-studio#create-a-signalr-hub) to your `[YourProjectName].Service` project in a `Hubs` folder.

3. In your `Startup.cs` file, add your `SignalR` service and a `CORS policy` to the `ConfigureServices` method.

``` csharp
public void ConfigureServices(IServiceCollection services)
{
services.AddRazorPages();
services.AddSignalR();

services.AddCors(o => o.AddPolicy(
"CorsPolicy",
builder => builder
.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader()
)
);
}
```
In your `Configure` method, add your CORS policy and `Hubs` endpoint

``` csharp
app.UseCors("CorsPolicy");

app.UseEndpoints(endpoints =>
{
endpoints.MapRazorPages();
endpoints.MapHub<Hubs.[YourProjectHub]>("/yourProjectHub");
});
```
``` csharp
public void ConfigureServices(IServiceCollection services)
{
services.AddRazorPages();
services.AddSignalR();
services.AddCors(o => o.AddPolicy(
"CorsPolicy",
builder => builder
.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader()
));
}
```

4. In your `Configure` method, add your CORS policy and `Hubs` endpoint

``` csharp
app.UseCors("CorsPolicy");

app.UseEndpoints(endpoints =>
{
endpoints.MapRazorPages();
endpoints.MapHub<Hubs.[YourProjectHub]>("/yourProjectHub");
});
```

You now have a SignalR service that you can use with your Uno application!