svc.login = function(username, password) {
            return $http.post(apiEndpoint + 'authenticate', {
                username: username,
                password: password
            })
            .then(function(val) {
                console.log("user token:", val.data);
                svc.token = val.data;
            });
        };

svc.login = function(username, password) {
        svc.authenticateApi().post(apiEndpoint + 'authenticate', {
                    username: username,
                    password: password
                },
                function(val) {
                    console.log("user token:", val);
                    svc.token = val;
                },
                function(res) {
                    console.log("error:", res.status + " " + res.statusText);
                });

        };