http.dart

    /**
     * Shortcut method for GET requests.  See [Http.call] for a complete description
     * of parameters.
     */
    Future<HttpResponse> get(String url, {String data, Map<String, dynamic> params,
                                          Map<String, String> headers, xsrfHeaderName,
                                          xsrfCookieName, interceptors, cache, timeout}
    ) => _http.get(url, data: data, params: params,
                   headers: headers, xsrfHeaderName: xsrfHeaderName,
                   xsrfCookieName: xsrfCookieName, interceptors: interceptors,
                   cache: cache, timeout: timeout)
               .catchError((_) => _router.go('login', {}), test: _isAuthError);