redirect-unauthorized.js

/**
 * Redirect unauthorized users to given path
 * whenever any response returns http code 401.
 */
angular.module('RedirectUnauthorized')
.config(['$httpProvider', function($httpProvider) {
  
  // Where should we redirect unauthorized users?
  var loginPath = '/signin';
  
  var interceptor = ['$q', function ($q) {
    function success(response) {
      return response;
    }
    
    function error(response) {
      if (response.status == 401) {
        location.href = loginPath;
      }
      return $q.reject(response);
    }
  
    return function (promise) {
      return promise.then(success, error);
    }
  }];
  $httpProvider.responseInterceptors.push(interceptor);
}]);