$.ajax({
            url: nodeTreeUrl+"?authkey="+authkey+"&secret="+secret,
            dataType: 'json',
            cache: false,
            success: function(data) {
                this.setState({data: data});
                console.log(data);
            }.bind(this),
            error: function(xhr, status, err) {
                console.error(nodeTreeUrl, status, err.toString());
            }.bind(this)
        });