SignalR 2 does not generate /signalr/hubs
14,087
Solution 1
In Global.asax file on the Application_Start event you have to register the hub url.
protected void Application_Start()
{
RouteTable.Routes.MapHubs();
}
Solution 2
It worked for me:
Go to the startup class in your project, in the Configuration method and add this:
app.MapSignalR("/signalr", new HubConfiguration());
I hope it works for you
Solution 3
Try this and no need to write line in App-Start Event
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Owin;
using Microsoft.Owin;
[assembly: OwinStartup(typeof(Faceless_Books.Hubs.Startup))]
namespace Faceless_Books.Hubs
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
// Any connection or hub wire up and configuration should go here
app.MapSignalR();
}
}
}
Author by
Niclas Gleesborg
It's me. A software developer. Like so many others.
Updated on August 16, 2022Comments
-
Niclas Gleesborg almost 2 years
Here is the page:
<script src="~/Scripts/jquery-1.10.2.min.js"></script> <script src="~/Scripts/jquery.signalR-2.1.2.min.js"></script> <!--Reference the autogenerated SignalR hub script. --> <script src="~/signalr/hubs"></script> <!--SignalR script to update the chat page and send messages.--> <script> $(function () { // Reference the auto-generated proxy for the hub. var notification = $.connection.notificationHub; // Create a function that the hub can call back to display messages. notification.client.addNewMessage = function (message) { // Add the message to the page. $('#discussion').append('<li><strong>' + '</strong>: ' + htmlEncode(message) + '</li>'); }; // Set initial focus to message input box. $('#message').focus(); // Start the connection. $.connection.hub.start().done(function () { $('#sendmessage').click(function () { // Call the Send method on the hub. chat.server.send($('#message').val()); // Clear text box and reset focus for next comment. $('#message').val('').focus(); }); }); }); // This optional function html-encodes messages for display in the page. function htmlEncode(value) { var encodedValue = $('<div />').text(value).html(); return encodedValue; } </script>
Here is the hub class:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using Microsoft.AspNet.SignalR; using Microsoft.AspNet.SignalR.Hubs; namespace AdminWebApp.Hubs { [HubName("notificationHub")] public class NotificationHub : Hub { public void SendNotification(string message) { Clients.All.addNewMessage(message); } } }
Startup.cs:
using Microsoft.Owin; using Owin; [assembly: OwinStartupAttribute(typeof(AdminWebApp.Startup))] namespace AdminWebApp { public partial class Startup { public void Configuration(IAppBuilder app) { ConfigureAuth(app); } } }
When I try to access:
http://localhost:4551/signalr/hubs
I get a HTTP 404 not found error and when I try to run the page I get:Failed to load resource: the server responded with a status of 404 (Not Found) Uncaught TypeError: Cannot read property 'client' of undefined
I have tried this: signalR : /signalr/hubs is not generated and it didnt work.
Any ideas?