Your Everyday service.

some-service.js

'use strict';

 angular.module('myApp').service('UserService', ['$http', '$window', function ($http, $window) {
    return {
        getUsers: function () {
            return $http({
                method: 'GET',
                url: $http.defaults.apiUrl + '/users',
                headers: { 'Authorization': $window.sessionStorage.token }
            }).then(function (data) { return data.data; });
        },
        getUser: function (_userName) {
            return $http({
                method: 'GET',
                url: $http.defaults.apiUrl + '/userByName/' + _userName,
                headers: { 'Authorization': $window.sessionStorage.token }
            }).then(function (data) { return data.data; });
        }
    }
}]);