AngularJS - Server side validation and client side forms

Question

I am trying to understand how to do the following things:

What is the accepted way of declaring a form. My understanding is you just declare the form in HTML, and ad

Answer 1

If you choose ngResource, it would look like this

var Item = $resource('/items/');
$scope.item = new Item();
$scope.submit = function(){
  $scope.item.$save(
    function(data) {
        //Yahooooo :)
    }, function(response) {
        //oh noooo :(
        //I'm not sure, but your custom json Response should be stick in response.data, just inspect the response object 
    }
  );
};

The most important thing is, that your HTTP-Response code have to be a 4xx to enter the failure callback.