SignalR in a Plugin

I'm trying to use SignalR with a product import plugin because it's going to take hours to import 50k products while downloading images, adding categories, and adding manufacturers.

I've added signalR via NuGet and have added my Startup Class as follows:

using System;
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;

[assembly: OwinStartup(typeof(Nop.Plugin.Misc.CAImport.Infrastructure.Startup))]
namespace Nop.Plugin.Misc.CAImport.Infrastructure
{
    public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.MapSignalR();
        }
    }
}

For some reason my Startup Class is not even running. Has anyone gotten SignalR to work on a nop plugin project before?

I got my startup class to register. I had to add the NuGet Package Microsoft.Owin.Host.SystemWeb 2.1.0 to the Nop.Web project. I tried to use a newer version but this version of Nop needs this specific version.

I'm just having a problem triggering my signalR hub from javascript.

<script type="text/javascript">
    $(document).ready(function () {
        var importHub = $.connection.importHub;

        $("#import-form").submit(function (e) {
            var fileName = $("#Location").val();

            e.preventDefault();
            //$("#import-form").hide();
            $("#status-display").show();
            importHub.server.importProducts(fileName);
        });

        $.connection.hub.start();
    });
</script>

Hub Code:

public class ImportHub : Hub
    {
        private ICAImportService _caImportService;

        public ImportHub(ICAImportService caImportService)
        {
            this._caImportService = caImportService;
        }

        public void ImportProducts(string fileName)
        {
      // Do Stuff Here

        }
    }

I just did some testing and it looks like the dependency injection is causing a problem.

This link has the solution: http://docs.autofac.org/en/latest/integration/signalr.html

Looks like I need to add code to the Global.asax but I'm not sure if this is possible to do via a plugin. Has anyone been able to solve this?

I'm trying to just add some code to my DependencyRegistar inside my plugin. I installed the NuGet package Autofac.SignalR. This package needs Autofac 3.1.3 but Nop uses a newer version of Autofac so I get an error when I build.

Hi,
SignalR is becoming popular. I guess next version of nopCommerce should incorporate that.
By the way, can you please share the full implementation of the plugin and where in nopCommerce you made the changes? This will help when some one is starting from scratch.

wmwebsites wrote:

Hi,
You just have to set owin:AutomaticAppStartup key value to true of appSettings in web.config of Nop.Web.

Also, I would like to know if you had successfully implemented SignalR in nopcommerce.

danger wrote:

Hello,

I have successfully implemented SignalR in  a nopcommerce plugin.

I did not set owin:AutomaticAppStartup key value to true.

Thanks,
Tony

Carneno wrote:

What's the version of your nopCommerce because this appsetting has been implemented from 3.70 i guess ?

danger,

I am using nopCommerce 3.90.

Tony

Carneno wrote:

Nice Tony!

Can you share with me the part of loading SignalR Hubs? I am trying by <script src="/signalr/hubs" type="text/javascript"></script> . I even tried by changing the paths in script but it's no where I can locate the hubs. It always returns me 404 not found.

Thank you.

danger wrote:
Did you configure the routes properly?

danger wrote:

danger,

I can send you just the parts of my plugin that you need.  Just let me know what to send you.

Or, I can send you my whole plugin if you want.  I will just take out the code that I wrote for the processing.

Let me know.

Tony