asp.net mvc - AngularJS with web API authentication -

i have started learning angularjs , i'm trying create simple login system. of methods creating , storing cookie authorisation looked lot more complicated .net approach use first thought keep using method of authentication doing call api , keeping angular ui side free of that.

this option suggested in post here -

how handle authentication in angular js application

however when try implement authenticates fine, not save cookie. if access api again , try referencing cookie like,

formsauthentication.getauthcookie(username, createpersistentcookie); 

it there nothing there.

is there simple way of retaining cookie in api not using?

here how can it, let include custom information auth cookie.

https://stackoverflow.com/a/10524305/1121845