service

var am = angular.module('bp3-zip', []);

am.config(['$stateProvider', $stateProvider => {
    $stateProvider.
    state('zip-code', {
        url: '/zip-code',
        controller: 'ZipCodeCtrl',
        templateUrl: 'feature/bp3/zip-code.html'
    });
}]);

am.factory('zipCodeSvc', ['$http', '$q', '$state', 'rest', ($http, $q, $state, rest) => {
    var svc = {};

    svc.searchByZip = (zipCode) =>
        $http.post(rest.getRestUrlPrefix() + 'path/to/zipCode/service', zipCode);

    return svc;
]);

am.controller('ZipCodeCtrl', ['$q', '$scope', 'zipCodeSvc', ($q, $scope, zipCodeSvc)

    $scope.searchByZipCode = () == > {
        zipCodeSvc.searchByZip($scope.zipCode).
        success(function(data) {
            //data will hold the result
            console.log(data);
        }).
        error(function(error) {
            console.log('Error retrieving data: ' + error);
        });
    };
]);