exampleApp.controller("ExampleController", function($scope, $http) {

$scope.getData = function() {
    $http.get('api/product', { params: { "username": "value1", "password": "value2" } })
        .success(function(data) {
            $scope.username = data.username;
            $scope.password = data.password;
        })
        .error(function(data)
            alert("ERROR");
        });
}