I have a 5.3.0 version of signalr self hosting that is being upgraded to a newer version of signalr. Using https://github.com/SignalR/SignalR/wiki/Self-host example i have created a simple example, but i can’t get it to work.
I can get a connection to the hub on the server and call methods on the hub, but i can’t get the hub to call the javascript client.
When looking at it in fiddler I never see a response come back from the hub.
Here is the code
using System;
using Microsoft.AspNet.SignalR;
using Microsoft.Owin.Hosting;
using Owin;
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
string url = "http://localhost:8080/";
using (WebApplication.Start<Startup>(url))
{
Console.WriteLine("Server running on {0}", url);
Console.ReadLine();
}
}
}
}
using Microsoft.AspNet.SignalR;
using Owin;
namespace ConsoleApplication3
{
class Startup
{
// This method name is important
public void Configuration(IAppBuilder app)
{
var config = new HubConfiguration
{
EnableCrossDomain = true,
EnableJavaScriptProxies = true
};
app.MapHubs(config);
}
}
}
using System;
using System.Threading.Tasks;
using Microsoft.AspNet.SignalR;
using Newtonsoft.Json;
namespace ConsoleApplication3.Hubs
{
public class Chat : Hub
{
public override Task OnConnected()
{
Notify(Context.ConnectionId);
return new Task(() => { });
}
public void RunTest()
{
Notify(Context.ConnectionId);
}
public void Notify(string connectionId)
{
dynamic testMessage = new
{
Count = 3,
Message = "Some test message",
Timestamp = DateTime.Now
};
String json = JsonConvert.SerializeObject(testMessage);
var context = GlobalHost.ConnectionManager.GetHubContext<Chat>();
context.Clients.Client(connectionId).sendNotification(json);
}
}
}
And here is the client side
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="Scripts/json2.js"></script>
<script src="Scripts/jquery-1.9.1.js"></script>
<script src="Scripts/jquery.signalR-1.0.1.js"></script>
<script src="http://localhost:8080/signalr/hubs"></script>
<script>
$(function () {
// Proxy created on the fly
var notification = $.connection.chat;
$.connection.hub.logging = true;
// Declare functions that can be run on the client by the server
notification.client.sendNotification = onAddNotification;
notification.client.disconnected = function (connectionid) {
console.log(connectionid);
};
// Testing code only
$("#testButton").click(function () {
// Run test function on server
notification.server.runTest();
});
jQuery.support.cors = true;
// Map the onConnect and onDisconnect functions
notification.client.connected = function () {
alert("Notification system connected");
};
notification.client.disconnected = function () { };
$.connection.hub.url = "http://localhost:8080/signalr";
//$.connection.hub.start();
$.connection.hub.start(function () {
alert("Notification system connected");
});
});
// Process a newly received notification from the server
function onAddNotification(message) {
// Convert the passed json message back into an object
var obj = JSON.parse(message);
var parsedDate = new Date(parseInt(obj.Timestamp.substr(6)));
// Update the notification list
$('#notifications').prepend('<li>' + obj.Message + ' at ' + parsedDate + '</li>');
};
</script>
</head>
<body>
<a href="javascript:void(0)" class="btn" id="testButton">Send test</a>
<ul class="unstyled" id="notifications">
</ul>
</body>
Any ideas would be appreciated, since i am fairly stuck.