Self-Host SignalR and Local Http Server on the same port

Question

I want to host a Self-Host SignalR process locally on port 80 and having a local http directory hosted on the same port (serving files from a certain directory, mapping the directory structure to HTTP requests).

For example accessing localhost:80/index.html will return a html file located in a certain directory, that also communicates with the SignalR process on the same port , because having different ports will cause an error in chrome browser due to same origin policy .

Any idea how can I achieve it? since I cannot bind the same port with two different applications.

Answer 1

As long as we're talking about SignalR 2.x and you can serve your other content via WebAPI, this is possible since they both use OWIN. With MVC, things are more complicated .

To run SignalR and WebAPI on the same port, you'd have to install Microsoft.AspNet.WebApi.OwinSelfHost in your SignalR applilcation and modify the Owin.IAppBuilder to use Web API:

public static class Startup
{
    public static void Configuration(IAppBuilder app)
    {
        var httpConfig = new HttpConfiguration();
        httpConfig.Routes.MapHttpRoute("Default", "api/{controller}/{id}",
                                       new {id = RouteParameter.Optional});
        app.UseWebApi(httpConfig);

        app.MapSignalR();
    }
}

Note that you could also use CORS to get around that browser issue.