Only add unique Name values to DB (list)

hello.js

var $fh = require('fh-mbaas-api');

var readOptions = {
    "act": "list",
    "type": "myFirstEntity",
    "eq": {
        "name": world
    }
};

$fh.db(readOptions, function (err, data) {
    if (err) {
        console.error("Error " + err);
        res.status(500).json({ msg: err })
    } else {
        console.log(JSON.stringify(data));

        if (data.count == 0) {

            var timestamp = new Date().getTime();

            var options = {
                "act": "create",
                "type": "myFirstEntity",
                "fields": {
                    "name": world,
                    "timestamp": timestamp
                }
            };

            $fh.db(options, function (err, data) {
                if (err) {
                    console.error("Error " + err);
                    res.status(500).json({ msg: err })
                } else {
                    console.log(JSON.stringify(data));
                    res.status(200).json({ msg: data })
                }
            });

        } else {
            console.log("Entry already exists");
            res.status(200).json({ msg: "Entry already exists" });
        }
    }
});