Webapi example of SignalR usage

Program.cs

using Microsoft.AspNetCore.SignalR;
using WebsocketTest;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddSignalR();

var app = builder.Build();

app.UseHttpsRedirection();

var summaries = new[] {
    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};

app.MapGet("/weatherforecast", async (IHubContext<WSTestHub> hub) =>
{
    var forecast =  Enumerable.Range(1, 5).Select(index =>
        new WeatherForecast
        (   DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
            Random.Shared.Next(-20, 55),
            summaries[Random.Shared.Next(summaries.Length)]
        )).ToArray();
        await hub.Clients.All.SendAsync("EndpointHit", "Endoint Weather forecast hit");
    return forecast;
});

app.MapHub<WSTestHub>("/ws");

await app.RunAsync();

record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
{
    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
}