There is a native $resource to interact with RESTful server-side.
Also you can use custom build service to combine loopback API and Angular front end:
angular.module('catalog', [])
.constant('ENDPOINT_URI', 'http://0.0.0.0:3000/api/')
.controller('CatalogController', function (ProductsModel) {
var store = this;
function getItems() {
ProductsModel.all()
.then(function (result) {
store.products = result.data;
});
}
store.products = [];
getItems();
})
.service('ProductsModel', function ($http, ENDPOINT_URI) {
var service = this,
path = 'products/';
function getUrl() {
return ENDPOINT_URI + path;
}
service.all = function () {
return $http.get(getUrl());
};
});