This can be done by taking advantage of the fact that your types and the SignalR types are in different assemblies. The idea is to create a JsonConverter that applies to all types from your assemblies. When a type from one of your assemblies is first encountered in the object graph (possibly as the root … Read more
SignalR connections (including the connection underlying all Hub operations for a client) do not support Session state. You could enable it if you wanted to but we’d strongly recommend against it as session state access serializes requests for a given client, meaning you won’t really get the benefit from SignalR duplex messaging anymore, as one … Read more
I found the final solution, this is the code of my OWIN startup class: public void Configuration(IAppBuilder app) { app.MapSignalR(); // Enable the application to use a cookie to store information for the signed i user app.UseCookieAuthentication(new CookieAuthenticationOptions { AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie, LoginPath = new PathString(“/Home/Index”) }); // Use a cookie to temporarily store information … Read more
You shouldn’t use Session with SignalR (see SignalR doesn’t use Session on server). You identify logical connections by their connection id which you can map to user names. The underlying problem is that access to SessionState is serialized in ASP.NET to ensure state consistency, so each request to the hub would block other requests. In … Read more
Take a look at the video from this blog post. It explains exactly how you can use WebAPI with SignalR. Essentially, Web API + SignalR integration consists in this class: public abstract class ApiControllerWithHub<THub> : ApiController where THub : IHub { Lazy<IHubContext> hub = new Lazy<IHubContext>( () => GlobalHost.ConnectionManager.GetHubContext<THub>() ); protected IHubContext Hub { get … Read more
No, SignalR is an abstraction over a connection. It gives you two programming models over that connection (hubs and persistent connections). SignalR has a concept of transports, each transport decides how data is sent/received and how it connects and disconnects. SignalR has a few built in transports: WebSockets Server Sent Events Forever Frame Long polling … Read more
so it turns out you need to pass in a url into StartOptions in the same format as the urlacl. Changing the start options to the code below fixed the problem. now the app is accessible across the network. var options = new StartOptions(“http://*:8989”) { ServerFactory = “Microsoft.Owin.Host.HttpListener” };
There is no way to get this count from SignalR as such. You have to use the OnConnect() and OnDisconnect() methods on the Hub to keep the count yourself. Simple example with a static class to hold the count: public static class UserHandler { public static HashSet<string> ConnectedIds = new HashSet<string>(); } public class MyHub … Read more
Please note that the SignalR API has changed multiple times since this question was asked. There is a chance that some answers will become out of date. This does not mean that they should be down-voted as they were correct at the time of writing There is another updated answer for this, as seen in … Read more
SignalR This is the answer I’m most excited to share, because it represents a much cleaner implementation that is lightweight and works well in today’s mobile (data constricted) environment. There have been several methods over the years to provide “realtime” pushing of data from the server to the client (or the appearance of pushing data). … Read more