Q: Twitch: how to continue saving followers of a channel from a certain point?

I have a little tool written in node.js which sends requests to the twitch API and receives packages. I have this function which saves the followers of a given channel https://dev.twitch.tv/docs/v3/reference/follows#get-channelschannelfollows . My problem is that sometimes I need to restart the tool, but I don't want to get packages with followers from the beginning. Is there a way with the help of the cursor to start to receive packages from a certain point?

try {
    function findCursor() {
        db.collection('channelmodels').findOne({_id: currentChannel}, function (err, userData, user) {
            if (userData == null) {
                console.log("channelmodel not in DB");
            } else if (userData != null) {
                cursorInDB = userData.cursor;
                console.log("cursor " + cursorInDB);
                alreadyInDB = true;
            }
        });
    }

    console.log("newstart " + newStart);
    findCursor();
    if (cursorInDB != null && newStart) {
        followerURL = beginningOfURL + currentChannel + "/follows?cursor=" + cursorInDB + "&direction=ASC&limit=" + packageSize;
    }
} catch (e){
    console.log(e.name);
    var fs = require('fs');
    fs.appendFile("undefinedLog.txt",  "undefined property at findCursor body._cursor"  + new Date().toLocaleString() + " "+e.name + "\r\n");

}

I have this piece of code, but either I am doing something wrong or twitch isn't consistent with the cursors, because sometimes after a restart it begins to save the followers from the last saved cursor, and sometimes it doesn't.

Thank you in advance!

via dmtrshpv