title: Web Api ASP.NET Custom Authentication
body: <p>I have a Web Api that returns basic info about a company's info. The login information is validated with their DB (this is used for an Desktop App) but with AngularJS im only ask to the API for Username and Password. How i can implement an authentication system (like the default on Visual Studio) on this with their users and passwords? Is possible to use something like Token? Can you help me? Thanks a lot. </p>
  
  <p><strong>[EDIT 1]</strong></p>
  
  <p>By the way, this webapi uses an old foxpro DB to manage the users and password. So if i gone to use the authentication system, i don't know how to use de database context with this type of old DB.</p>