gistfile1.js

;(function ( app ) {
    'use strict';

angular.module('PeachDelivery')

    .factory("DeployService", DeployService);

    DeployService.$inject = [];

    function DeployService () {
        // define the public facing api for this service
        var service = {
                'publicMethod' : publicMethod
            };

        return service;

        // public methods
        function publicMethod () {
            // I can be called from other modules

            // But only I can call the method below
            privateMethod();
        }

        // private methods
        function privateMethod () {
            // I can only be called by functions in this service
        }
    }

})( window.app );