Hi Haansi,

I am not a .NET developer, but I will try to help you as much as I can.

Umbraco use the ASP.NET Membership Provider model, meaning that all the abstract classes which are provided Out-Of-The-Box with ASP.NET are capable of accessing the Umbraco Member. There's plenty of good resources on MSDN (and other sites) for using ASP.NET Membership, a suggested starting point is here.

http://our.umbraco.org/documentation/Reference/Management-v6/Services/MemberService

http://our.umbraco.org/documentation/Reference/Querying/UmbracoHelper/#WorkingwithMembers

Here are some documentation about caching: http://our.umbraco.org/documentation/reference/Cache/

And for the routing you can found some documentatio here http://our.umbraco.org/documentation/Reference/Templating/Mvc/custom-routes, and http://our.umbraco.org/documentation/Reference/WebApi/routing and http://our.umbraco.org/documentation/Reference/Mvc/custom-controllers,

There a also a blog post from the Umbraco blog, maybe it can help you to: http://umbraco.com/follow-us/blog-archive/2014/1/27/a-practical-example-of-route-hijacking-in-umbraco.aspx

But as I said I the beginning of my post, I am not a .NET developer.

Hope this helps,

/Dennis