Get variable name instead of value

Using bash, I think this is possible, but not sure about JavaScript, say we have this:

    const {masterid} = req.query;

    if (!masterid) {
        return res.status(500).send(new Error('Missing query param "masterid".'));
    }

What I want to do is not hardcode "masterid" in the string, instead do something like this:

    const {masterid} = req.query;

    if (!masterid) {
        return res.status(500).send(new Error(`Missing query param "${Reflect(masterid).name()}.".`));
    }

is there a way to do this with the Reflect API?

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect