SignalR

SignalR 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)

Steps

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

2. Add 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.

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

  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!