Track-Bitly-Links-In-Salesforce-Marketing-Cloud.js

<script runat = "server" >

    Platform.Load("core", "1.1.1");
try {
    var config = {
        name: "Bitly_Link_Tracking",
        cols: ["ShortURL"],
        filter: {
            Property: "Tracked",
            SimpleOperator: "isNull",
            Value: " "
        }
    }

    var records = retrieveRecords(config);

    function retrieveRecords(config) {

        var prox = new Script.Util.WSProxy(); //Retrieving all records in data extension using WS Proxy.
        var accessToken = 'Bitly Access Token XXXX';
        var headerNames = ["Authorization"];
        var headerValues = ["Bearer " + accessToken];
        var clickTrackingDeName = 'Bitly_Link_Tracking';
        var records = [],
            moreData = true,
            reqID = data = null;
        while (moreData) {
            moreData = false;
            if (reqID == null) {
                data = prox.retrieve("DataExtensionObject[" + config.name + "]", config.cols, config.filter);
            } else {
                data = prox.getNextBatch("DataExtensionObject[" + config.name + "]", reqID);
            }
            if (data != null) {
                moreData = data.HasMoreRows;
                reqID = data.RequestID;
                for (var i = 0; i < data.Results.length; i++) {
                    var result_list = data.Results[i].Properties;
                    for (k in result_list) {
                        var key = result_list[k].Name;
                        var val = result_list[k].Value
                        var shortURL = val;
                        Platform.Function.UpsertData(clickTrackingDeName, ["ShortURL"], [shortURL], ["Tracked"], ["DONE"]); //Setting the Tracked value to DONE so that next time the same record will not get picked up
                        var apiURL = "https://api-ssl.bitly.com/v4/bitlinks/" + shortURL + "/clicks";  //Bitly GET API End point
                        var result = HTTP.Get(apiURL, headerNames, headerValues);
                        var response = result.Content;
                        var totalclicks = Platform.Function.ParseJSON(response).link_clicks; //Parsing the JSON response and getting the clicked date and clicks
                        var clickDateArray = [];
                        var clickNumberArray = [];
                        for (j = 0; j < totalclicks.length; j++) { 
                            if (totalclicks[j].clicks > 0) {            //Only take the dates which have clicked and ignore the other dates
                                var clickDate = totalclicks[j].date;
                                var clickNumber = totalclicks[j].clicks;
                                clickDateArray.push(clickDate);
                                clickNumberArray.push(clickNumber);
                            }
                        }
                        if (clickDateArray.length != 0) {
                            Platform.Function.UpsertData(clickTrackingDeName, ["ShortURL"], [shortURL], ["TotalClicks", "Clickdate"], [Stringify(clickNumberArray), Stringify(clickDateArray)]);  //If there is any click has made on the link then Upserting the data extenison with click date & clicks
                        }
                    }
                }
            }
        }
    }
} catch (e) {
    Write(Stringify(e));
} 
</script>