问将下载完整的通知发送到web

EN

using Microsoft.AspNetCore.SignalR;
using System.Threading.Tasks;
namespace SignalRChat.Hubs
{
   public class ChatHub : Hub
   {
       public async Task SendMessage(string user, string message)
       {
           await Clients.All.SendAsync("downloadComplete", user, message);
       }
   }
}

public void ConfigureServices(IServiceCollection services)
    {
        // ...
        services.AddSignalR();
    }
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
       app.UseEndpoints(endpoints =>
        {
            // ...
            endpoints.MapHub<ChatHub>("/chatHub");
        });
    }

var connection = new signalR.HubConnectionBuilder().withUrl("/chatHub").build();
connection.on("downloadComplete", function (user, message) {
    // do something
});