promise example

example.js

    function getDataFromAPI(data, options) {
        fetch("/app/get_stats")
            .then(function (response) {
                return response.json();
            })
            .then(function (result) {
                var sysload_dict = result.sysload;

                Object.keys(sysload_dict).forEach(function (key) {
                    data.addRow([key,
                        sysload_dict[key]['freeGB'],
                        sysload_dict[key]['min1'],
                        sysload_dict[key]['min5'],
                        sysload_dict[key]['min15']
                    ])
                });
                drawTable(data, options);
            });
    }