CODEWITHSUNDEEP
.netasp.net-web-apisignalr
Smeegs
Smeegs

Reputation: 9224

Can't negotiate Signalr when using only webapi

I followed the following video on getting signal and webapi running together: Video

However, I'm unable to get it working on my solution. I have an empty api project that has references to many other projects that have the api controllers defined for their functionality.

In one of the other projects, I wanted to add a signalr hub to communicate with the client. So, I added signalR through nuget.

Right off the bat I began getting an OWIN error so I added the following to the app settings

<add key="owin:AutomaticAppStartup" value="false" />

I've added the hubcontext to the controller in question like so:

private readonly Lazy<IHubContext> _hub = new Lazy<IHubContext>(
    () => GlobalHost.ConnectionManager.GetHubContext<TaskHub>());

/// <summary>
/// Gets the hub.
/// </summary>
protected IHubContext Hub
{
    get { return _hub.Value; }
}

Then in one of the api calls, I added the following code to send a message to the client:

Hub.Clients.All.taskLoaded();

When I started to work on the client, the connection would fail each time. After some investigation I learned that .../signalr/negotiate is always returning 404.

There is clearly something I doing wrong. But I can't figure it out.

Upvotes: 0

Views: 898

Answers (1)

Pawel
Pawel

Reputation: 31610

You seem to not have mapped SignalR. Add MapSignalR() to your Configuration method in the Startup class.

Upvotes: 1

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