User authentication in apps is a pain, even if you've built an authentication system dozens of times. Forms, sessions, user tables, validation, password management, the list goes on in the seemingly never-ending to-do list for setting up a simple signup, login, and logout system for your app. OpenID company Janrain makes it easier, building on top of social networks.
Microsoft’s ASP.NET Web API simplifies the process of building platform-agnostic RESTful HTTP services. The service’s portability makes it a useful tool, and in this tutorial on DeveloperHandbook.com, Jon Preece shows followers how to build a RESTful API using Web API and JWT.