valdiations

http://blog.yodersolutions.com/bootstrap-form-validation-done-right-in-angularjs/

Simple Authenication of AngularJs with WCF restful service.

Now you can use authenication with cookies or local storage concept.
I have did practical for this. You can download code from github.
Download link:
https://github.com/eShopping/e_shopping/blob/master/AngularJS_Auth.rar


More about AngularJS-Token-Authentication



http://www.codeproject.com/Articles/784106/AngularJS-Token-Authentication-using-ASP-NET-Web-A


http://draptik.github.io/blog/2013/07/13/angularjs-example-using-a-java-restful-web-service/

http://beletsky.net/2013/11/simple-authentication-in-angular-dot-js-app.html