AngularJs Service

controllers.js

angular.module('starter.controllers', [])

.factory('userData', function ($http, $q) {
        var userId;
        return {
            set: function (data) {
                userId = data;
            },
            get: function () {
                var deferred = $q.defer();
                $http.get('https://api.github.com/user/' + userId, {
                    params: {
                    client_id: '9ce0acce7ef3194558c7',
                        client_secret: '2ecd08db5e0ed67e2a71e8c371a46509b33c4ce2'
                    }})
                    .then(function (response) {
                        deferred.resolve(response.data);
                    });

                return deferred.promise;
            }
        };
    })

.controller('usersController', ['$scope', '$http', 'userData',
        function ($scope, $http, userData) {
        
        $scope.getUserData = function (userId) {
          userData.set(userId);
     };
}])

.controller('userController', ['$scope', '$http', 'userData',
        function ($scope, $http, userData) {
        userData.get().then(function (data) {
            $scope.user = data;
        })
}])