I am in the process of writing a book on SignalR that is intended to become a complete guide on how to use it. I have just added a new chapter to it, which covers all aspects of advanced configuration. It shows how you can fine-tune your server and all the supported client types, which includes.NET, JavaScript and Java. The chapter also shows how to add MessagePack support to your SignalR applications and explains pros and cons of MessagePack protocol compared to JSON.https://leanpub.com/signalronnet6-thecompleteguide