August, 2012

Handle reconnections to signalR host

This article was originally published at

SignalR does a great job of dealing with reconnecting to a host when either the client disconnects or the server disconnects. This is pretty handy since it handles all the intricacies of a persistent http connection for you. But what it doesn’t deal with is the initial negotiation to a server. If that fails you are stuck retrying yourself. I wrote a simple reconnection function that leverages the scheduling functionality of Rx to continuously try to reconnect to the server.

For our SignalR usage (version 0.5.2), I’m using the exposed Hub functionality, not the persistent connections since I liked the encapsulation that Hub’s gave us. In the following example, we have a local member variable called Connection which is a HubConnection type created with this code.

HubConnection Connection = new HubConnection(Url);

HubConnection has a Start method that you use to initialize connections to … Read more

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