user-service.js

'use strict';

angular.module('myApp').service('UserService', function($http, $q, $location) {

    var self = {

        identity: {
            id: 'guest'
        },

        load: function() {

            if (self.identity.id === 'guest') {

                var promise = $http({
                    method: 'GET',
                    url: 'http://localhost:8080/users/me'
                }).then(function(response) {
                    angular.copy(response.data, self.identity);
                    return self.identity;
                });

                return promise;

            }

            var d = $q.defer();
            d.resolve(self.categories);
            return d.promise;

        },

        login: function(username, password) {

            // Get token
            var promise = $http({
                url: 'http://localhost:8080/oauth',
                method: 'POST',
                data: {
                    'client_id': 'cherrytech',
                    'client_secret': 'password',
                    'grant_type': 'password',
                    'username': username,
                    'password': password
                }
            }).then(function(response) {
                $http.defaults.headers.common.Authorization = response.data.token_type + ' ' + response.data.access_token;
                self.load();
            });

            return promise;

        },

        logout: function() {
            self.identity = {
                id: 'guest'
            };
            return self.identity;
        },

        create: function(user) {

            var promise = $http({
                url: 'http://localhost:8080/users',
                method: 'POST',
                data: user
            }).then(function(response) {
                console.log('response', response.data);
            });

            return promise;

            // Make registration call
            //self.load();

        }

    };

    return self;
});