Check heroku platform status, and respond accordingly

heroku_status_check.js

/**
 * A function to check heroku status, and return results to a callback
 */
function heroku_status(callback) {
    //YQL is necessary becasue heroku status JSON data is not padded
    $.getJSON("http://query.yahooapis.com/v1/public/yql",
        {
            q:"select * from json where url=" +
                "\"https://status.heroku.com/api/v3/current-status.json\"",
            format:"json"
        },
        function (data, request_status, xhr) {
            if (data.query.results) {
                callback(data.query.results.json.status, //Heroku platform status
                         data.query.results.json.issues, //Heroku platform issues
                         request_status, //request status (i.e., "success")
                         xhr //jqXHR object
                        );

            } else {
                console.error('Problem accessing heroku status information');
            }
        }
    );
}

/**
 * Example usage, doing something different depending on heroku production status
 */
$().ready(function () {

    heroku_status(
        /**
         * An example callback function
         * @param status Heroku platform status in "red", "yellow" or "green" form.
         *          i.e., {"Development": "yellow", "Production": "green"}
         * @param issues JSON data representing any issue currently being worked on
         * @param response_type will probably be "success"
         * @param xhr jqXHR object
         */
            function (status, issues, response_type, xhr) {

            switch (status.Production) {
                case "yellow":
                    console.log("There may be some problems with the site");
                    break;
                case "red":
                    console.log("The application is down");
                    break;
                case "green":
                    console.log("All systems go");
                    break;
                default:
            }
        });
});