Documentation for extension developers

[adam-drewery]

Hi,

Is there any documentation for developers looking to write their own extensions?

I am trying to have a go at writing something for bing maps or azure maps, based on the SignalR extension. However, I'm struggling to understand how the typescript/javascript content is deployed with the rest of the code. It seems there is a little bit of magic going on as part of the build process.

Is there anything i can read through that will clear this up for me?

Thanks, Adam