Ask HN: Resources to learn c# .net

I'm quite familiar with building basic rest services with Java EE / spring but may need to pick up a similar kind of thing using the modern .Net equivalent. I believe the team is using web api and I've created a couple of basic services through tutorials and the scaffolding / wizards. Although I can see what's going on I don't have a knowledge of the c# language although it certainly looks familiar. I'd be interested in a primer on both. It looks like they are using angular for the front end so it looks like I'll have a few things to cover. I know html/css/js and have worked in Web dev for years but it sounds like it may have a big learning curve. Any suggestions for books/online tutorials would be much appreciated.