How to connect an office addin to a server? : It seems that most of office addins don't have a server or a database. But it seems that some addins do have a server behind.

I have built websites by `mean-stack`. And we can indeed use `angularjs` to build front-end of an office addin. Does anyone know how to connect the front-end of an office addin to a (mongo + express + node) server? Is there any tutorial?