Basic angular controller making use of the Book service

book.js

(function () {

    // @ngInject
    function BookCtrl(Book){

        var vm = this;
        vm.error = '';
        vm.books = [];

        vm.getAllBooks = function() {
            Book.query()
                .then(function(success) {
                    vm.books = success;
                })
                .catch(function(error) {
                    vm.error = 'Unknown error';
                })
        }

    }

    angular
        .module('app')
        .controller('BookCtrl', BookCtrl);

})();